Determine whether you can use the normal distribution to approximate the binomial distribution. If youcan, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If youcannot, explain why and use the binomial distribution to find the indicated probabilities.

A survey of adults in a region found that 64% have encountered fraudulent charges on their credit cards. You randomly select 100 adults in the region. Complete parts(a) through(d) below.

(b) Find the probability that the number who have encountered fraudulent charges on their credit cards is at least 68.

(Round to four decimal places asneeded.)