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If the probability that a test for a certain disease gives an accurate result is .92, what is the probability that the test gives an inaccurate result?

- ..08
- .8
- 1.08
- None of the answers given; click to see the solution.

If A and B are events in a sample space S such that P(A) = .7, P(B) = .2, and P(A B) = .1, find P(A B).

- .8
- .9
- 1
- None of the answers given; click to see the solution.

In a survey of 250 people concerning how they obtain information about current events, 70 people read a newspaper each day, 130 watch news on television each day, and 30 read a newspaper and watch news on television each day. If a person is selected at random from the group surveyed, what is the (empirical) probability that the person does not either read a newspaper or watch news on television each day?

- .32
- 80
- .68
- None of the answers given; click to see the solution.

In a survey of 250 people concerning how they obtain information about current events, 70 people read a newspaper each day, 130 watch news on television each day, and 30 read a newspaper and watch news on television each day. If a person is selected at random from the group surveyed, what is the (empirical) probability that the person reads the newspaper but does not watch the news on television each day?

- .16
- 40
- .282
- None of the answers given; click to see the solution.

In a survey of 250 people concerning how they obtain information about current events, 70 people read a newspaper each day, 130 watch news on television each day, and 30 read a newspaper and watch news on television each day. If a person is selected at random from the group surveyed, what is the (empirical) probability that the person does not read a newspaper each day?

- .72
- 180
- .4
- None of the answers given; click to see the solution.

This question refers to the data in the table below, obtained from a survey of 500 people regarding three different kinds of toothpaste.

**Prefers Brand A****Prefers Brand B****Prefers Brand C****Totals****Male**103 70 107 280 **Female**40 95 85 220 **Totals**143 165 192 500

If a person from this survey is selected at random, what is the (empirical) probability that the person prefers Brand B toothpaste?- .33
- 165
- .14
- None of the answers given; click to see the solution.

This question refers to the data in the table below, obtained from a survey of 500 people regarding three different kinds of toothpaste.

**Prefers Brand A****Prefers Brand B****Prefers Brand C****Totals****Male**103 70 107 280 **Female**40 95 85 220 **Totals**143 165 192 500

If a person from this survey is selected at random, what is the (empirical) probability that the person is a male who prefers Brand B or Brand C toothpaste?- .354
- 177
- .56
- None of the answers given; click to see the solution.

This question refers to the data in the table below, obtained from a survey of 500 people regarding three different kinds of toothpaste.

**Prefers Brand A****Prefers Brand B****Prefers Brand C****Totals****Male**103 70 107 280 **Female**40 95 85 220 **Totals**143 165 192 500

If a person from this survey is selected at random, what is the (empirical) probability that the person is a female or prefers Brand A toothpaste?- .646
- .726
- .44
- None of the answers given; click to see the solution.

If the probability of event E is 9/13, what are the odds for event E?

- 9/4
- 4/13
- 4/9
- None of the answers given; click to see the solution.

If the odds that a certain horse will win a race are 1/5 (which can also be stated as 1:5), what is the probability that the horse will win the race?

- 1/6
- 1/4
- 5/1
- None of the answers given; click to see the solution.

A box contains 12 equally sized marbles of which 4 are red and 8 are blue. 5 marbles are selected at random from the box. What is the probability that at least one of the marbles selected is red?

- .93
- .35
- .07
- None of the answers given; click to see the solution.