#38

A binomial experiment is given. Decide whether you can use the normal distribution to approximate the binomial distribution. If you can, find the mean and standard deviation. If you cannot, explain why. A survey of adults found that 42% have used a multivitamin in the past 12 months. You randomly select 50

adults and ask them if they have used a multivitamin in the past 12 months.

the mean is _______and the standard deviation is ________ (Round to two decimal places as needed)

#14

Consider a uniform distribution from a=1 to b=26.

(a) Find the probability that x lies between 9 and 18.

(b) Find the probability that x lies between 5 and 24.

(c) Find the probability that x lies between 4 and 11.

(d) Find the probability that x lies between 6 and 14.

(Round to three decimal places as needed)