For this question, any non-integer answers should be entered as decimals, rounded to the hundredths place. consider this data set. the mean of the data set is , and the sample proportion of numbers less than the mean is %

Mean =22.1

The sample proportion of numbers less than the mean is = (7/15 ) *100 =46.67%

Explanation:

Mean of the data set can be calculated by adding all numbers and dividing it with total number sample data.

25.5 + 26 +18.2 +15.3 + 28.5 + 27 + 20.7 +20.2 +26.1 +18.2 +21.4 +17.9 +24.3 +22.6+ 19.6 =331.5

    2. Dividing by total

331.5/15 =22.1

the answer is d. 4

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