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what is the standard deviation of 77, 45, 72, 56, 98, 60, 70, 89, 50, 80, 95, 70, 34, 77, 65, 70, 70, 82, 86, 86.

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.

What percentage of the scores are within two standard deviations of the mean (±2)? Please include the range of values for this deviation and the exact values from the data set that are included in this range.

Does this data fit the model of a normal distribution? Why or why not?

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engelkil000

Answer:

The standard deviation of the numbers is 16.154 the given observations are 77 45 72 56 98 60 70 89 50 80 95 70 34 77 65 70 70 82 86 86

.Step-by-step explanation:

I hope this helped !

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