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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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Meanwhile, for chemical properties, they're about how the substance reacts with other substances, such as metals react with acid to form hydrogen. And by the word "react", it means there's no way turn the reaction product back to the original substance without using chemical methods such as heating or electrolysis. 

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