Mathematics, 20.02.2020 04:35 IDONTHAVEABRAIN
Calculate the mean, variance, and standard deviation of the following discrete probability distribution.(Negative values should be indicated by a minus sign. Round your intermediate calculations to 4 decimal places and final answers to 2 decimal places.)
x -33 -25 -14 -4
P(X = x) 0.5 0.24 0.18 0.08
A.) Mean for the question above and B below this is a seperate question!!
B.) Assume that X is a binomial random variable with n = 20 and p = 0.87. Calculate the following probabilities.(Round your intermediate calculations and final answers to 4 decimal places.)
Probability
a. P(X = 19)
b. P(X = 18)
c. P(X > 18)
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