Answered: A space agency compiles data on…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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Question

A space agency compiles data on space-shuttle launches and publishes them on its website. The following table displays a frequency distribution for the number of crew members on each shuttle mission over a 30-year period. Let

denote the crew size on a randomly selected shuttle from this time period. Complete parts (a) through (e) below.

Crew size	2	4	5	6	7	8
Frequency	4	5	40	20	72	1

a. What are the possible values of the random variable

(Use a comma to separate answers as needed.)

b. Use random-variable notation to represent the event that the shuttle mission obtained has a crew size of

7. Select the correct choice below and fill in the answer box within your choice.

A.( P)

c. Find

P(X=4);

interpret in terms of percentages.

P(X=4)=

(Round to three decimal places as needed.)

Interpret in terms of percentages. Select the correct choice below and fill in the answer box to complete your choice.

% of shuttle crews consist of at most 4 people.

B. %

of shuttle crews consist of more than 4 people.

C.%

of shuttle crews consist of exactly 4 people.

(Type an integer or decimal rounded to one decimal place as needed.)

d. Obtain the probability distribution of X. List the possible values of X in ascending order, and their corresponding probabilities.

(Type integers or decimals rounded to three decimal places as needed.)

x	enter your response here	enter your response here	enter your response here	enter your response here	enter your response here	enter your response here
P(X=x)