Question

Please help me with this mean and standard deviation for a binomial random variable! :) I will give you a shiny medal!! :)

Answer 1

To interpret the​ mean, recall that the mean is also called the expected value. The mean of a binomial random variable can be interpreted as the expected number of successes in n trials of an experiment. - I dont under stand response I got for my wrong question :(

Answer 2

@Vuriffy

Answer 3

There was no reference to a 50%, 60/100 = 60%, and the whole thing was about before turning 18; proving the third choice to be incorrect and the second to be incorrect.

Answer 4

ahh I see, thank you :)