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Assume a binomial probability distribution with n=55 and π=0.28 . Compute the following: (Round all your...

Assume a binomial probability distribution with n=55 and π=0.28 . Compute the following: (Round all your z values to 2 decimal places.)

a) The mean and standard deviation of the random variable. (Round your "σ" to 4 decimal places and mean to 1 decimal place.)​​​​​​​
σ = ___

μ = ___

b) The probability that X is 18 or more. (Use the rounded values found above. Round your answer to 4 decimal places.)

c) The probability that X is 12 or less. (Use the rounded values found above. Round your answer to 4 decimal places.)

Math   Statistics-And-Probability   
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