statistics help please 8

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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 the standard deviation.  If you cannot, explain why. 

A survey of adults found that 41% 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.

Select the correct answer below, if necessary, fill in the answer boxes within your chice.

(A). No, because nq< 5

(B) no, because np< 5

(C)yes, the mean is_____ and the standard deviation is______

Same question but different numbers.

A survey of adults found that 47% have used a multivitamin in the past 12 months.  You randomly select 40 adults and ask them if they have used a multivitamin in the past 12 months.

Select the correct answer below, if necessary, fill in the answer boxes within your chice.

(A). No, because nq< 5

(B) no, because np< 5

(C)yes, the mean is_____ and the standard deviation is______

 
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