The average number of Saturday night shootings is 5 a night. What’s the chance that there will be a need for exactly 3 shootings this Saturday?

Answers

Answer 1

Answer:

0.14

Step-by-step explanation:

Using the poisson probability relation :

P(x = x) = (λ^x * e^-λ) ÷ x!

From the question ; mean, λ = 5 ; x = 3

Hence,

P(x = 3) = (5^3 * e^-5) ÷ 3!

P(x = 3) = (125 * 0.0067379) / 6

P(x = 3) = 0.8422375 / 6

P(x = 3) = 0.140


Related Questions

Suppose you were trying to gain an understanding of how the very best painter in an automotive factory works. You know that there is only one painter who far outperforms all of the other painters in the factory, and you know that he uses techniques that no one else in the factory uses. What type of data would you want to collect in this situation

Answers

Answer:

Qualitative data

Step-by-step explanation:

Qualitative methods like an interviews and observations that are considered valuable as of their detail, descriptiveness, and uniqueness.

In this given situation,  it is already known that the specific painter who outperforms in the factory.

And my motive is to gain an understanding with respect to the performing as a best painter for an automative industry so the same information would be observed and interviewed him

Which graph represents y=3sqrt x+6-3?

Answers

Answer:

graph for y=3sqrt x+6-3

Step-by-step explanation:

hope this helps :]

Find the volume of the following cylinder in cubic inches

Answers

Answer:

Option (1)

Step-by-step explanation:

Volume of a cylinder is given by the formula,

V = πr²h

Here, V = Volume

r = Radius of the circular base

h = Height of the cylinder

From the picture attached,

r = 8 in.

h = 0.5 in.

By substituting these values in the formula,

V = π(8)²(0.5)

  = 32π

  = 32(3.14)

  = 100.48 in³

Therefore, Option (1) will be the correct option.

This is 4 questions so you can get 50 points......

Answers

Answer:

...........................................................................................................................................................................................i really dont know

Step-by-step explanation:

solve the equation: 1/2n - 3 = 5

Answers

Answer:

n=16

Step-by-step explanation:

Let's solve your equation step-by-step.

1/ 2 n−3=5

Step 1: Add 3 to both sides.

1/ 2 n−3+3=5+3

1/ 2 n=8

Step 2: Multiply both sides by 2.

2*( 1/ 2 n)=(2)*(8)

n=16

Answer:

n=16

Answer:

n=16

Step-by-step explanation:

First you have to do 3+-3 to cross it out

then you have to add 3 to 5

lastly divide 8 and 1/2

Then you get your answer.

backk from ban!!!!!!!!

Answers

Oookkkkkkkkkkkkkkkkkkkll

Insert the greater than, less than, or equal sign (>, <, or =) to make each statement true.
a. 45⁄45 ____1
b. 1____ 6⁄3
c. 2⁄7 ____1
d. 64⁄23 ____1

Answers

Answer:

a. 45/45 = 1

b. 1 < 6/3

c. 2/7 < 1

d. 64/23 > 1

The equation of a line is y = 8x + 2, and the point (3,q) lies on this line.
Determine the value of q

Answers

Answer:

q = 26

Step-by-step explanation:

Given the point (3, q ) lies on the line then the coordinates satisfy the equation.

Substitute x = 3, y = q into the equation

q = 8(3) + 2 = 24 + 2 = 26

Answer:

[tex]\rm q = 26[/tex]

Step-by-step explanation:

Given :-

The equation of a line is y = 8x + 2, and the point (3,q) lies on this line.

And we need to find out the value of q. Since the point lies on the given line , it will be a solution of the line. On substituting the values of x and y , we have ,

Given line :-

[tex]\rm\implies y = 8x + 2 [/tex]

Substituting the respective values :-

[tex]\rm\implies q = 8*3 + 2 \\\\\rm\implies q = 24 + 2 \\\\\rm\implies \boxed{\rm q = 26 }[/tex]

Hence the value of q is 26 .

14. The measure of Fis 110. The measure of 2E is 100°
What is the measure of D?
150°

Answers

According to given angles ,

Angle C=180- angle F (Linear pairs or st.line )

=70

Angle B = 180 - angle B (Same as above)

=80

Now

Angle D =Angle C + Angle B (Exterior angle property of a triangle)

=150°

Enjoy

. Find the volume of a sphere with a radius of 23 feet. Round your answer to 2 decimal places. [Use pi = 3.14] *

Answers

Answer:

50.965.01

Step-by-step explanation:

The two circles shown above have radii of 8 in. and 2 in.

Answers

Answer:

1/4

Step-by-step explanation:

For the first circle 2 x 2in = 4 to find diameter

4 x 3.14 = 12.56

6in x 2 = 12

12 x 3.14 = 37.68

simplify

12.56/37.68

6.28/18.84

3.14/9.42

So the answer is 1/4 since 3.14 x 2 = 6.28

Also since the radius is 2 times longer

Answer:

D

Step-by-step explanation:

Circumference = 2 * pi * r

Circle A / Circle B = 2 * pi * 8 / 2 * pi * 2

You need to take note of the right side. The 2s cancel and so does pi

Circle A/ Circle B = 8/2

Circle A / Circle B = 4/1 = 4

Which is D

In which quadrant would you find the point 4 and 8

Answers

Answer:

Quadrant 1

Step-by-step explanation:

According to the 2000 U.S. Census, 80% of Americans over the age of 25 have earned a high school diploma. Suppose we take a random sample of 120 Americans and record the proportion, p, of individuals in our sample that have a high school diploma.

Answers

Answer:

a) The mean is 0.8.

b) The standard deviation is 0.0365.

c) Normal

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

80% of Americans over the age of 25 have earned a high school diploma.

This means that [tex]p = 0.8[/tex]

Suppose we take a random sample of 120 Americans

This means that [tex]n = 120[/tex].

Question a:

The mean is:

[tex]\mu = p = 0.8[/tex]

The mean is 0.8.

Question b:

The standard deviation is:

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.8*0.2}{120}} = 0.0365[/tex]

The standard deviation is 0.0365.

Question c:

By the Central Limit Theorem, approximately normal.

a) The mean is 0.8.

b) The standard deviation is 0.0365.

c) Normal

Here, we have,

we know that,

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean x and standard deviation σ, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean x and standard deviation s = σ/√n .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean x=p and standard deviation s=√p(1-p)/n

80% of Americans over the age of 25 have earned a high school diploma.

This means that p=0.8

Suppose we take a random sample of 120 Americans

This means that n=120.

Question a:

The mean is:

x=p=0.8

The mean is 0.8.

Question b:

The standard deviation is:

s=0.0365

The standard deviation is 0.0365.

Question c:

By the Central Limit Theorem, approximately normal.

Learn more about standard deviation here:

brainly.com/question/23907081

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What is the answer to 4(10 + 9)

Answers

Answer:

76

Step-by-step explanation:

10+9= 19

19*4=76

Answer:

76

Step-by-step explanation:

1 Simplify  10+910+9  to  1919.

4\times 19

4×19

2 Simplify.

76

76

Write 0.00000000000000000000000000167 as a multiple of a power of 10.

Answers

Answer:

1.67x10^-27

hope this helps

have a good day :)

Step-by-step explanation:



Trisha packs x boxes with 12 bottles in each box. The total number of bottles she packs is 216. Which equation and solution represent the total number of boxes Trisha packs?
help asap ty :)

Answers

Answer:

Number of boxes Trisha pack = 18 boxes

Step-by-step explanation:

Given:

Number of boxes Trisha pack = X

Number of bottles in each box = 12

Total number of bottle = 216

Find:

Number of boxes Trisha pack

Computation:

Total number of bottle = Number of boxes Trisha pack x Number of bottles in each box

216 = X × 12

X = 216 / 12

X = 18

Number of boxes Trisha pack = 18 boxes

Answer:

okkkkkkkkkkkkkkkkkkkkkkkk

Step-by-step explanation:

ON A RECENT MATH TEST MARY SCORED 14 OF 16 CORRECT. JOHN SCORED 23 OF 26AND JOE SCORED 9 OF 11 CORRECT. WHO ACHIEVED THE HIGHER SCORE?

Answers

Answer:

I think the answer is mary

Answer:

John

Step-by-step explanation:

Mary: 87%-88% (0.875)

John: 88% (0.884)

Joe: 81% (0.818)

An English professor assigns letter grades on a test according to the following scheme. A: Top 9% of scores B: Scores below the top 9% and above the bottom 61% C: Scores below the top 39% and above the bottom 25% D: Scores below the top 75% and above the bottom 10% F: Bottom 10% of scores Scores on the test are normally distributed with a mean of 72.3 and a standard deviation of 8. Find the minimum score required for an A grade. Round your answer to the nearest whole number, if necessary.

Answers

Answer:

The minimum score required for an A grade is 83.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 72.3 and a standard deviation of 8.

This means that [tex]\mu = 72.3, \sigma = 8[/tex]

Find the minimum score required for an A grade.

This is the 100 - 9 = 91th percentile, which is X when Z has a pvalue of 0.91, so X when Z = 1.34.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]1.34 = \frac{X - 72.3}{8}[/tex]

[tex]X - 72.3 = 1.34*8[/tex]

[tex]X = 83[/tex]

The minimum score required for an A grade is 83.

What is the slope of the line below? If necessary, enter your answer as a
fraction in lowest terms, using the slash ( 1 ) as the fraction bar. Do not enter
your answer as a decimal number or an equation.

Answers

WhT line tho is there more info

The slope of line shown in the graph is 1.

What is Slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

We have two points from the graph as (8, 8) and (5, 5)

So, the slope of line

Slope = (5- 8)/ (5-8)

slope= (-3)/ (-3)

slope = 1

Also, rise 3 units and run 3 units

Then, slope= Rise/ Run

slope= 3/3

Slope= 1

This, the required slope is 1.

Learn more about Slope here:

https://brainly.com/question/16428551

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Sara claims that the number of pages she has read in her book is proportional to the number of minutes that she has spent reading. She collects several data points to prove her claim and expresses the data points as (x, y) coordinate pairs.

Which of the following actions could Sara take to prove her claim? Select two that apply.

A. Place the coordinate pairs in a table and show that they create equivalent ratios.


B. Use the coordinate pairs to show that an equation of the form y = x + c can be written.


C. List out the coordinate pairs and show that each y–value is a multiple of its associated x–value.


D. Plot the coordinate pairs on a graph and show that the points make a straight line through the origin.

Answers

Answer:

B. Use the coordinate pairs to show that an equation of the form y = x + c can be written. C. List out the coordinate pairs and show that each y–value is a multiple of its associated x–value. D. Plot the coordinate pairs on a graph and show that the points make a straight line through the origin.

Step-by-step explanation:

Answer:

D. Plot the coordinate pairs on a graph and show that the points make a straight line through the origin.

hope it helps have a nice dayyy

If you extend a rectangle along its 3rd
dimension, you form a
A.cylinder
B.cube
C.rectangular prism
D.triangular prism

Answers

Answer:

C. rectangular prism

Step-by-step explanation:

Keri pours 6 glasses of juice. Each glass holds 34 cup. How many cups of juice does Keri pour?

Answers

Answer:

3/4x6=4.5

Step-by-step explanation:

If Keri pours 6 glasses that each contain 3/4 cups than If she where to pour all of them than It would be 3/4*6 to represent the amount of cups to glasses and then the answer would be 4.5 C.

In all glasses combined their will be 4.5 cups of water!

Fractions are written as a ratio of two integers.  If Keri pours 6 glasses of juice, she must have poured 4.5 cups of juice

Ratio and proportions

Fractions are written as a ratio of two integers.


If Keri pours 6 glasses of juice and each glass contains 3/4 cup, hence the total cups of juice poured is expressed as:

Total cups of juice poured = 3/4 * 6

Total cups of juice poured = 4.5

Hence if Keri pours 6 glasses of juice, she must have poured 4.5 cups of juice

Learn more on ratio and proportion here: https://brainly.com/question/19994681

NEED ANSWER FAST PLEASE
!! Marty keiths annual salary is 56,000 as a computer- aided designer. If the state tax is 4% what does he pay yearly in state taxes?

Answers

Answer:

$3240.Step-by-step explanation:

there is no way to explain it on computer but hope this helps

$2,240

Convert the 4% to a decimal by dividing by 100 = 0.04

56,000 x 0.04 = 2,240

Help me with this please!

Answers

The answer is the first one

NO LINKS OR ELSE YOU'LL BE REPORTED!Only answer if you're very good at math.

Graph the equation below using the slope and y-intercept form.

Answers

Answer:

Answer below

Step-by-step explanation:

The y-intercept is 2, so you know that one point will be (0,2). The slope is 2/3 so you go 2 units up and 3 units to the right from (0,2).

Find the mean. Round to the nearest tenth. 19, 13, 14, 18, 9, 2, 14.

Mean:

Answers

Answer:

12.7

Step-by-step explanation:

19 + 13 + 14 + 18 + 9 + 2 + 14 = 89

89 / 7 = 12.7142857143

12.7

Find the x-intercept and y-intercept of the line −2x − 2y = −2. Use the intercepts to graph the equation.

Answers

Answer:

Step-by-step explanation:

The x-intercept is 1, the y-intercept is 1. Convert it to slope-intercept form, then plug in 0 for y to find the x-intercept.

Directions: identify weather the problem has a minimum or a maximum type an “X” in the box next to your answer

A) y= x^2+2x-1
Minimum or maximum

B) y=-x^2-8x-1
Minimum or maximum

C) y=2x^2+8x

Answers

Answer:

A)   minimum

B)   maximum

C)   minimum

Step-by-step explanation:

A positive x² coefficent means the parabola opens up and the vertex is the minimum

A negative x² coefficent means the parabola opens up and the vertex is the maximum

---------------------------------

A)   minimum

B)   maximum

C)   minimum

Millilitre are used to measure the large amount of volume

Answers

Answer:

false

Step-by-step explanation:

Consider the three isotopes of carbon. What do the three isotopes have in common? Choose all that apply.
A)
They have the same atomic number.
B)
They have the same number of protons.
c)
They all have four valence electrons.
D)
They have the same number of neutrons.
E)
They have the same average atomic mass number,

Answers

Answer:

a) they have the same atomic number.

c) they all have 4 valence electrons.

Other Questions
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Looking at a typed transcript of these documents disconnects students from truly understanding them as part of history. One of history's central lessons is that times change and things evolve."A poll of our state's high school history and government teachers revealed that almost 90 percent of them use primary-source historical documents written in cursive on a regular basis.Counterclaim:Students can just look at typed versions of historical documents to get the same information. find the alternative interior angles in each figure 4. Which has a longer perimeter, a square whose side is 3 metres or a rectangle whoseside measures 2 m by 3 m? can someone answer this i follow and like A researcher studying microorganisms has discovered a strain of bacteria that doubles every 2.8 days. How many bacteria will the researcher have after 7.3 days if they started with 650 bacteria? Find the Surface Area of the figure. *1 point If the wavelength of an s-wave is 23,000 m, and its speed 4500 m/s, what is its frequency? Drag each label to the correct location on the image.Classify each zoonotic disease according to whether it is foodborne or vector-borne. The peace treaty which ended French control over Canada in 1763 was signed in: Anybody know the answer to this ?? Select the factors that a network engineer is most likely to consider when designing a computer network. the ways in which employees share business documents the number of hours employees work the number of networked computers the type of work done at networked computers the number of employees using each computer the rate of pay for networked employees Can somebody solve for X on this please Does anyone know what 1/2*1/2*1/2*1/2 equals? answers:4/485/161/207364/12 Please help me I'm crying and need help On January 1, 2021, the general ledger of Dynamite Fireworks includes the following account balances:Accounts Debit CreditCash $ 24,300 Accounts Receivable 5,700 Supplies 3,600 Land 55,000 Accounts Payable $ 3,700 Common Stock 70,000 Retained Earnings 14,900 Totals $ 88,600 $88,600 During January 2021, the following transactions occur:January 2 Purchase rental space for one year in advance, $7,500 ($625/month).January 9 Purchase additional supplies on account, $4,000.January 13 Provide services to customers on account, $26,000.January 17 Receive cash in advance from customers for services to be provided in the future, $4,200.January 20 Pay cash for salaries, $12,000.January 22 Receive cash on accounts receivable, $24,600.January 29 Pay cash on accounts payable, $4,500.The following information is available on January 31.Rent for the month of January has expired.Supplies remaining at the end of January total $3,300.By the end of January, $3,575 of services has been provided to customers who paid in advance on January 17.Unpaid salaries at the end of January are $5,450.1. 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