The following table displays a frequency distribution for the number of crew members on each shuttle mission over a​ 10-year period. Let X denote the crew size on a randomly selected shuttle from this time period. Crew size 2 3 4 5 6   Frequency 1 6 38 23 11   a. What are the possible values of the random variable X​? __________ ​(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 5. ___________________   c. Find ​P(X=3​). P(X=3​)=____________

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The following table displays a frequency distribution for the number of crew members on each shuttle mission over a​ 10-year period. Let X denote the crew size on a randomly selected shuttle from this time period.
Crew size
2
3
4
5
6
 
Frequency
1
6
38
23
11
 
a. What are the possible values of the random variable X​? __________
​(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 5. ___________________
 
c. Find ​P(X=3​).
P(X=3​)=____________
​(Round to three decimal places as​ needed.)
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