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Chapter 2: Q. 4 (page 138)

T2.4. The figure shows a cumulative relative frequency graph of the number of ounces of alcohol consumed per week in a sample of 150adults. About what percent of these adults consume between 4and 8ounces per week?

(a)20%(b)40%(c)50%(d)60%(e)80%

Short Answer

Expert verified

The percent of the adults consume between 4and 8ounces per week is option (b)40%.

Step by step solution

01

Step 1:Given information

A graph shows a cumulative relative frequency of the number of ounces of alcohol consumed per week in a sample of 150 adults.

02

Explanation

The cumulative relative frequency graph contains points roughly at (4,20)and(8,60).
This implies that about 20%of the adults consume less than 4ounces per week and about 60%of the adults consume less than 8ounces per week.

60%-20%=40%
About 40%of the adults to consume between 4ad 8ounces per week.

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