Quiz 2Name1.A personnel ocer for arm that employs many part-time salespeople tries out a sales-aptitudetest on several hundred applicants. Because the test is unproven, result are not used in hiring. Fortypercent of applicants show high aptitude on the test and 12% of those hired both show high aptitudeand achieve good sales record. Therm’s experience shows that 30% of all salespeople achieve goodsales. Let A be the event "shows high aptitude" and let B be the event "achieves good sales".a. Find P(A), P(A and B), and P(BjA).b. Are A and B independent?2.A manufacturer of snack crackers introduces several new products each year.About 60% ofthe introductions are failures, 30% are moderate success, and 10% are major successes. To try toimprove the odds, the manufacturer tests new products in a customer tasting panel. Of the failures,50% receive a poor rating, 30% a fair rating, and 20% a good rating. For the moderate successes,
This is the end of the preview.
access the rest of the document.