Many adults turn to dietary supplements to treat health problems like sleep issu

Question

Many adults turn to dietary supplements to treat health problems like sleep issues (spending> $50 billion/year). Use the following frequency distribution table to answer questions 13 and 14. Table 2. Number of dietary supplements taking at least twice per week, MIDUS, 2011 Cumulative Percent 31.28 54.00 71.90 85.13 92.86 97.53 99.06 99.61 99.92 99.96 100.00 Total Number of Supplements 0 Freq 797 579 456 337 197 119 39 14 Percent 31.28 22.72 17.90 13.23 7.73 4.67 1.53 0.55 0.31 0.04 0.04 100.00 10 Total 2,548 Question 10 1 pts 13. What is the value of the interguartile range of the number of supplements taken by adults?

Explanation / Answer

here 1st quartile =(n+1)/4 th value =(2548+1)/4 th value =637.25 th value =0

3rd quartile =3*(n+1)/4 th value =3*(2548+1)/4 th value =1911.75 th value =3

hence interquartile range =Q3-Q1 =3-0 =3

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