Weight Away, a company that sells weight-loss plans, often advertises the effect

Question

Weight Away, a company that sells weight-loss plans, often advertises the effectiveness of its plans by highlighting the stories of a few clients who have lost extraordinary amounts of weight. To get a better indication of the general effectiveness of the plans, we asked Weight Away to send us information about "typical" clients. Weight Away mailed us a brochure with the following histogram, which displays the weight loss (in pounds) over the past month for a sample of 50 Weight Away clients. (Note that a negative value for weight loss represents a of weight gain.) Based on the histogram, find the proportion of weight loss values in the sample that are less than 30 pounds. Write your answer as a decimal, and do not round your answer.

Explanation / Answer

Solution:-

Proportion of weight loss less than 30 pounds,

0 to 10 = 0.14

10 to 20 = 0.24

20 to 30 = 0.20

We are not including -10 to 0 as it relates to weight gain.

Therefore, 0.14 + 0.24 + 0.20 = 0.58

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