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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.5

b.80

c. 3

d.4

Short Answer

Expert verified

80thpercentile =4. Hence option (d).

Step by step solution

01

Percentile : 

Each of the 100 equal groups into which a population can be split based on a variable's distribution of values.

02

Explanation : 

X= number of days per week which100clients use a particular exercise facility.

localid="1648046725812" n=100

80thpercentile - the 0.80in cumulative relative frequency column.

Between 3and 4is the 80thpercentile but the X values are not between 3and 4.

All X = 4from 76thto 87thpercentile.

Hence,80thpercentile =4.

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