In a normal distribution, almost all (99 per cent) of its values are within how many standard deviations from its mean?
A) ± 1
B) ± 2
C) ± 3
D) ± 4

Name: In a normal distribution, almost all (99 per cent) of its values are within how many standard deviations from its mean? A) ± 1 B) ± 2 C) ± 3 D) ± 4
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Question

Quizplus · Accepted Answer

In a normal distribution, 99.7% of the data falls within ± 3 standard deviations from the mean. This is known as the empirical rule or the 68-95-99.7 rule.

In a Normal Distribution, Almost All (99 Per Cent) of Its