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Use Salt to answer. Find the mean for the binomial random variable x =20 Find the standard deviation for the binomial random variable x= 4. P (18< x <24) =

Sagot :

Answer:

To find the mean for the binomial random variable x=20:

Mean = N * p

where N is the number of trials (20) and p is the probability of success on a single trial.

The standard deviation for the binomial random variable x=4:

Standard deviation = sqrt((Np(1-p)))

where N is the number of trials (4) and p is the probability of success on a single trial.

To find P(18< x <24):

Probability = [P(x<24) - P(x<18)]

Step-by-step explanation:

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