Assume that a national fitness study reports that 10% of millenials exercise daily. suppose that a researcher surveys a random sample of 250 millenials regarding their daily exercise habits. assume that is a binomial random variable that represents the number of millenials in the sample who exercise daily. compute the mean and standard deviation of the sampling distribution of . report as a whole number and as a decimal precise to two decimal places.

Step-by-step explanation:

Let X be the number of millenials  in the sample who exercise daily

Given that X is binomial with n = 250 and p = 10% = 0.1

q =

As per binomial distribution rule we have

Mean of X = E(X) =

Variance of X =

Std dev=

i think it would be 43 movies that would have to be watched.

step-by-step explanation:

think about it. for the second plan, every month is 8 dollars. 8 x 12= 96. so thats the number for the second plan. now for the first plan, its annual meaning you have to pay 10 dollars every year. so now you have to get an equivalent amount of 86 since 96-10=86. 86 divided by 2 since every movie costs 2$ then you would have to watch 43 movies a year to get the same as the second plan. i really hoped this . have a wonderful day as well!