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A binomial probability distribution has n = 15 trials with the probability of success on each trial is p = .65. Calculate the following.
a. The mean,, of the distribution:np
b. The standard deviation of the distribution:sqrt(npq)
c. The probability of 10 successes: binompdf(15,0.65,10)
d. The probability of 10 failures: binompdf(15,0.35,10)
e. The probability of at least 14 successes: 1 - binomcdf(15,0.65,13)
I use a TI-84 calculator.