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Chapter 2: Q. 120 (page 159)

Use the following information to answer the next two exercises. X= the number of days per week that 100clients use a particular exercise facility.

The 80thpercentile is

a.5b.80c.3d.4

Short Answer

Expert verified

Answer is d.

The 80thpercentile is equal to 4.

Step by step solution

01

Given

X= the number of days per week that 100clients use a particular exercise facility.

02

Explanation

Xis the number of days per week that100clients use a particular exercise facility.

n=100

Note the 0.80in the "cumulative relative frequency" column to find the 80th percentile.

The 80th percentile is somewhere between 3and 4.We don't have any X values between 3and 4, however. All X values are 4 from the 76thpercentile to the 87thpercentile.

As a result, the80thpercentile is 4.

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