Question
Homework: Section 5.5 Homework Score: 0 of 8 pts 70(12 (7 complete) 15.5.17 A binomial experment is given. Decide whether you can use the normal distribution to approximale the binomial distmbution. If you ean, tnd the mean and standard deviatioen. I your carnot, explain why A survey o adults found that SS% have used a multivitamin in the past 12 months. You randomly select S adus and ask th mfthey have used inthia mn n theo s t2 monta Select the correct answer below and, d necessary, fill in the answer baxes within your choice D A. No, because nps5 B. No because nq 5 C. Yes, me mean is-7, and the standard deviation is Round to wo decimal places as needed.) Elck to setect and emer your answens) and then chek Chech A
Explanation / Answer
n*p=50*0.55=27.5 which is >5
Mean is n*p=27.5
and variance is n*p*(1-p)=50*0.55*0.45=12.38
thus, standard deviation is sqrt(12.375)=3.52
option C
