Standard deviation of the corresponding normal distribution

Reference no: EM13337917

In a certain binomial distribution,π=0.20 and n=30.In using the normal approximation,

a. What are the mean and standard deviation of the corresponding normal distribution?

b. If x=the number of sucessesamong the 30 observations,determine the following: P(x=5),P(4< x < 7), P(1 < x< 5), P(x > 7).

Reference no: EM13337917

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