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Mathematics, 17.04.2020 02:12 kcarstensen59070

The following list of test scores has an average of 50 and an SD of 10: 39 41 47 58 65 37 37 49 56 59 62 36 48 52 64 29 44 47 49 52 53 54 72 50 50 (a) Use the normal approximation to estimate the number of scores within 1.25 SDs of the average. (b) How many scores really were within 1.25 SDs of the average?

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