Mathematics, 08.12.2021 05:50 pesinaic

PLEASE SHOW ALL OF YOUR WORK. I want to learn not to cheat thank you. 77, 45, 72, 56, 98, 60, 70, 89, 50, 80, 95, 70, 34, 77, 65, 70, 70, 82, 86, 86 • Part 2: What percentage of the scores are within one standard deviation of the mean (±1)? Please include the range of values for this deviation and the exact values from the data set that are included in this range.
The standard deviation is 16.154

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PLEASE SHOW ALL OF YOUR WORK. I want to learn not to cheat thank you. 77, 45, 72, 56, 98, 60, 70, 89...