A random variable X is distributed binomially with n = 8 and π = 0.70. The standard deviation of the variable X is approximately:
A)0.458
B)2.828
C)1.680
D)1.296

Name: A random variable X is distributed binomially with n = 8 and π = 0.70. The standard deviation of the variable X is approximately: A)0.458 B)2.828 C)1.680 D)1.296
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Question

Quizplus · Accepted Answer

The standard deviation of a binomial distribution is calculated using the formula: √(nπ(1-π)). Substituting the given values, √(8*0.70*0.30) ≈ 1.296.

A Random Variable X Is Distributed Binomially with N =