Question: Workers at a factory produce a toy with a defect about once every 4 hours on average. Each toy costs the factory approximately $7 in

Workers at a factory produce a toy with a defect about once every 4 hours on average. Each toy costs the factory approximately $7 in labor and supplies.
a. What is the expected number of toys with defects at the end of a 40-hour work week?
b. What is the standard deviation in the number of toys with defects at the end of a 40-hour work week?
c. What is the expected cost to the factory for toys with defects at the end of a 40-hour work week?
d. What is the standard deviation in cost to the factory for toys with defects at the end of the 40-hour work week?

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