1) One out of every 92 tax returns that a tax auditor examinesrequires an audit. If 50 returns are selected at random, what isthe probability that less than 3 will need an audit? 0.0151 0.99780.0109 0.9828
2) Sixty-seven percent of adults have looked at their creditscore in the past six months. If you select 31 customers, what isthe probability that at least 20 of them have looked at their scorein the past six months? 0.142 0.550 0.692 0.450
3) Ten rugby balls are randomly selected from the productionline to see if their shape is correct. Over time, the company hasfound that 89.4% of all their rugby balls have the correct shape.If exactly 6 of the 10 have the right shape, should the companystop the production line? No, as the probability of six having thecorrect shape is not unusual Yes, as the probability of six havingthe correct shape is not unusual No, as the probability of sixhaving the correct shape is unusual Yes, as the probability of sixhaving the correct shape is unusual
