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Chapter 2: Q T2.4. (page 149)

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

a.20%b.40%c.50%d.60%e.80%

Short Answer

Expert verified

The correct option is (b)40%

Step by step solution

01

Given information

02

Calculation

The cumulative relative frequency diagram has pointed at (4,20) and (4,20), respectively (8,60)This indicates that approximately 60% of adults consume less than 8 ounces per week, and approximately 20% consume less than 4 ounces per week.

60%-20%=40%

It is estimated that 60 percent -20 percent =40 percent of individuals consume 4 to 8 ounces of alcohol every week.

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