Question

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.

c. find ( p(x = 3) ).
(round to three decimal places as needed.)
( p(x = 3)=square )

Explanation:

Step1: Calculate total frequency

Total frequency \(n=2 + 3+33 + 17+13=68\)

Step2: Calculate \(P(X = 3)\)

The frequency for \(X = 3\) is \(7\). Probability \(P(X=3)=\frac{\text{Frequency of }X = 3}{\text{Total frequency}}=\frac{7}{68}\approx0.103\)

Answer:

\(0.103\)