A Math Teacher Gives Two Different Tests to Measure Students

question 50

Multiple Choice

A math teacher gives two different tests to measure students' aptitude for math. Scores on the first test are normally distributed with a mean of 23 and a standard deviation of 5.1. Scores on the second test are normally distributed with a mean of 68 and a standard deviation of 10.4. Assume that the two tests use different scales to measure the same aptitude. If a student scores 28 on the first test, what would be his equivalent score on the second test? (That is, find the score that would put him in the same percentile.)

• A)78
• B)79
• C)76
• D)73

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Definitions:

Early 30s

A term used to describe someone who is between the ages of 30 and 33.

White Space

In design, the intentional use of unmarked areas to create visual clarity and balance; also known as negative space.

Baby Boomers

A demographic group born during the post-World War II baby boom, approximately between 1946 and 1964.

Generation X

A demographic cohort following the baby boomers and preceding the millennials, generally defined as being born between the early 1960s and late 1970s.