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Chapter 4: Q. 77 (page 290)

Suppose that the PDF for the number of years it takes to earn a Bachelor of Science (B.S.) degree is given as in Table 4.34

On average, how many years do you expect it to take for an individual to earn a B.S.?

Short Answer

Expert verified

On average, it takes 4.85years to earn a B.S. degree.

Step by step solution

01

Given information

Given a table for PDF for the number of years it takes to earn a Bachelor of Science.

02

Explanation 

XPX
X.Px
3
0.05
0.15
4
0.40
1.60
5
0.30
1.50
6
0.15
0.90
7
0.10
0.70
Total1
4.85

Ex=鈭�x.pxEx=4.85

A person's expected time to complete a B.S. is 4.85 years.

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Most popular questions from this chapter

Approximately 8%of students at a local high school participate in after-school sports all four years of high school. A group of 60seniors is randomly chosen. Of interest is the number that participated in after-school sports all four years of

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