Score: 0 of 1 pt 5 of 11 (7 complete) 4.3.9 Mean Personal Incomes The 2013 mean

Question

Score: 0 of 1 pt 5 of 11 (7 complete) 4.3.9 Mean Personal Incomes The 2013 mean personal incomes (in thousands of dollars) of a particular region, which is composed of 30 subregions, are described by the boxplot to the right. Complete parts (a) through (e) below. 30 35 40 45 50 55 60 65 70 Thousands of dollars a. Estimate the mean personal income of Subregion A, which has the largest mean personal income of the entire region. The mean personal income of Subregion A is about S 64 thousand. (Round to the nearest whole number as needed.) b. Estimate the percentage of subregions that have mean personal incomes less than S40 thousand The percentage of subregions that have mean personal incomes less than $40 thousand is about % Round to the nearest whole number as needed.)

Explanation / Answer

b. For a set of data, a number for which 25% of the data is less than that number is the first quartile.

Now from boxplot Q1 value is 40.

Hence answer is 25%.

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