Probablity Statistics

4

.2.5

Question Help

1.) A research center poll showed that 84​% of people believe that it is morally wrong to not report all income on tax returns. What is the probability that someone does not have this​ belief?

The probability that someone does not believe that it is morally wrong to not report all income on tax returns is

.

​(Type an integer or a​ decimal.)

4

.2.9

Question Help

Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table.

	​Drive-thru Restaurant
	A	B	C	D
Order Accurate	313	278	248	134
Order Not Accurate	32	55	40	11

If one order is​ selected, find the probability of getting food that is not from Restaurant A.

The probability of getting food that is not from Restaurant A is

​(Round to three decimal places as​ needed.)

4

.2.17

Question Help

Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table.

	​Drive-thru Restaurant
	A	B	C	D
Order Accurate	319	274	231	123
Order Not Accurate	36	54	30	16

If one order is​ selected, find the probability of getting an order from restaurant C or D

or an order that is not accurate.

The probability of getting an order from restaurant C or D or

order that is not accurate is

​(Round to three decimal places as​ needed.)

4

.3.7

Question Help

In a certain​ country, the true probability of a baby being a girl is .464. Among the next five

randomly selected births in the​ country, what is the probability that at least one of them is a

boy​?

The probability is

.

​(Round to three decimal places as​ needed.)