Question

Given the plot of normal distributions A and B below, which of the following statements is true? Select all correct answers.

В

A normal bell curve labeled Upper A and a normal elongated curve labeled Upper B are centered at the same point. Normal curve Upper B is narrower and above normal curve Upper A.

Select all that apply:

• A has the larger mean.

• B has the larger mean.

• The means of A and B are equal.

• A has the larger standard deviation.

• B has the larger standard deviation.

• The standard deviations of A and B are equal.

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Question 13

A marksman has a probability of 0.288 for hitting a certain long range target. What is the probability that it takes 3 shots for the marksman to hit the long range target?

• Round your answer to 3 decimal places.

Provide your answer below:

0 point 1470.147

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789÷Divided by456×Multiplied by123-Minus0.,+PlusLeftRightBackspace=Equals

$x$x​$y$y​$x^2$x2​$\sqrt{ }$√​$\frac{x}{ }$x​​$x\frac{ }{ }$x​​$x^{ }$x​$x_{ }$x​​<>±$%$\degree$°​:$\left(\right)$()​$\abs{ }$​$\pi$π​$\infty$∞​

1234567890Backspace

qwertyuiop

asdfghjkl:

↑Upzxcvbnm,.

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Question 14

Which of the following tables shows a valid probability density function? Select all correct answers.

Select all that apply:

• x	P(X=x)
  0	0.37
  1	0.06
  2	0.01
  3	0.56

• x	P(X=x)
  0	38
  1	38
  2	14

• x	P(X=x)
  0	25
  1	310
  2	310
  3	310

• x	P(X=x)
  0	18
  1	18
  2	18
  3	38
  4	14

• x	P(X=x)
  0	0.03
  1	0.01
  2	0.61
  3	0.31
  4	0.21

• x	P(X=x)
  0	110
  1	310
  2	45
  3	−15

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Question 15

A county office gets an average of 10 calls in a 2 hour time period. What is the probability that the county office will get more than 0 calls in a 15 minute period?

• Round your answer to three decimal places.

Provide your answer below:

0 point 7140.714

$\text{Basic}$Basic​

$\text{Basic}$Basic​

789÷Divided by456×Multiplied by123-Minus0.,+PlusLeftRightBackspace=Equals

$x$x​$y$y​$x^2$x2​$\sqrt{ }$√​$\frac{x}{ }$x​​$x\frac{ }{ }$x​​$x^{ }$x​$x_{ }$x​​<>±$%$\degree$°​:$\left(\right)$()​$\abs{ }$​$\pi$π​$\infty$∞​

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Answer 1

The oqual logor stamdand deuiation meams n A amd B ae has A the SB P ( tangt) = O. 288 P (Not 1-O.288 = 712 P( taks 5 shots fo the matkmam to hit Pchng P(Not hting ) PC JxP(Not ing O12 X o.712 x0.288 0. 146 For a podabddiy damudy fundion to be valid E PCx) fuit oe 3 PoO: O.06 0.37 0.01 0.56 G

IS xbe the numbor of calls m de 2 hus Poenom (= 10) Now calls I0 m120 munules miniile calls 20, ok 5 mnubs 10x15 120 en 15 12 P(e IS mun 0 calls tham P(x0) P(xEo) PIX-0) - e 1- 1 0, 2865 O 135