Given that there is a 0.85 probability that a randomly selected adult

knows what Twitter is, select 50 independently chosen adults.

Let the random variable equal the number of adults that know what Twitter is.Find the following information.

a. The distribution is Binomial, why?

b. State the number of trials. Use the correct symbol.

c. What are the possible values for the random variable?

d. State the probability of success. Use the correct symbol.

e. State the probability of failure. Use the correct symbol.

f. Determine the mean of the distribution.

g. Determine the standard deviation of the distribution.

h. State the values of the random variable that are significantly high or

significantly low