In an effort to make Easter as spectacular as Christmas, STUD Lights has over the last several years produced light for Easter decorations. In the production process, STUD Lights has experienced a 4% defective rate. A customer has placed an order for 150 Easter lights. Use the normal approximation to the binomial distribution to answer the following:
a. Calculate the mean and distribution for this distribution.
b. What is the probability that less than 2 Easter lights sets in this order will be defective?
c. What is the probability that exactly 7 Easter lights sets will be defective in this order?
d. What is the probability that 3,4, or 5 Easter light sets will be defective in this order?
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