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Zolol [24]
3 years ago
8

A psychopathologist records the number of criminal offenses among teenage drug users in a nationwide sample of 1,201 participant

s. To measure the variance of criminal offenses, he computes SS = 10,800 for t his sample. Compute the standard deviation.
Physics
1 answer:
lara [203]3 years ago
7 0

Answer:

Standard deviation = 3

Explanation:

Given

N = 1201

SS = 10800

Required

Determine the standard deviation

First, we need to determine the variance;

Variance = \frac{SS}{N - 1}

This gives:

Variance = \frac{10800}{1201 - 1}

Variance = \frac{10800}{1200}

Variance = 9

Know that:

Variance = SD^2

Where SD represents standard deviation

This gives

9 = SD^2

Take square root

SD = \sqrt 9

SD = 3

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