If a random variable X has a normal distribution with mean zero and variance 4,...

PRMIA 8007 Question Answer

If a random variable X has a normal distribution with mean zero and variance 4, approximately what proportion of realizations of X should lie between -4 and +4?

66.60%

90%

95%

99%

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Product: 8007
Update on: Jul 29, 2025
Questions: 132

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Simple linear regression involves one dependent variable, one independent variable and one error variable.

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If a random variable X has a normal distribution with mean zero and variance 4,...

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