What proportion of the data from a normal distribution is within two standard deviations from the mean?

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What proportion of the data from a normal distribution is within two standard deviations from the mean?

QUESTION 7

A. 0.4772 B. 0.9544 C. 0.3413 D. 0.6826

QUESTION 8

The total area under the curve f(x) of any continuous random variable x is equal to one.

True
False

QUESTION 9

Determine the value of zo which satisfies P(z > z0) = 0.7995.

math Statistics-And-Probability

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What proportion of the data from a normal distribution is within two standard deviations from the mean?

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What proportion of the data from a normal distribution is within two standard deviations from the mean?

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