A credit card company monitors cardholder transaction habits to detect any unusualactivity Suppase that the dollar value of unusual activity for a austomer in a month follows a normal distribution with mean $250 and variance $388. Round your intermediate.calculations and final answers to four decimal places (eg. 98.7654). (a} What is the probability of $250 to $294 in unusual activity in a month? P = (b) What is the probability of more than $294 in unusual activity in a month? P= i (c) Suppose that 10 customer accounts independently follow the same normal distribution. What is the probability that at least one of these customers exceeds $294 in unusual activity in a month?

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