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Below is a 6 × 8 array containing the ages of moviegoers. treat this as a population. 32 34 33 12 57 13 58 16 23 23 62 65 35 15 17 20 14 11 51 33 31 13 11 58 23 10 63 34 12 15 62 13 40 11 18 62 64 30 42 20 21 56 11 51 38 49 15 21 (a) what was the proportion of all 48 moviegoers who were under age 20? (round your answer to 2 decimal places.)

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carlosego
The first thing you should do is write the matrix and start counting.In this case I wrote the matrix in excel. (see attached image).
 Of the population of 48 people, 17 people were under 20 years old.
 So, the proportion is the following.
 17/48 = 0.354166667
 The percentage is
 (17/48) * 100 = 35.41666667%
Ver imagen carlosego

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