Question 1 2 pts

In a sample of 80 adults, 28 said that they would buy a car froma friend. Three adults are selected at random without replacement.Find the probability that none of the three would buy a car from afriend.

34.30%

28.80%

26.90%

21.67%

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Question 2 2 pts

A sock drawer has 17 folded pairs of socks, with 8 pairs ofwhite, 5 pairs of black and 4 pairs of blue. What is theprobability, without looking in the drawer, that you will firstselect and remove a black pair, then select either a blue or awhite pair?

70.59%

22.06%

20.76%

29.41%

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Question 3 2 pts

An investment advisor believes that there is a 60% chance ofmaking money by investing in a specific stock. If the stock makesmoney, then there is a 50% chance that among those making money,they would also get a dividend. Find the probability that theinvestor makes money and receive a dividend.

10%

50%

60%

30%

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Question 4 2 pts

An investment advisor believes that there is a 60% chance ofmaking money by investing in a specific stock. If the stock makesmoney, then there is a 50% chance that among those making money,they would also get a dividend. Find the probability that theinvestor makes money and receive a dividend.

50%

60%

30%

10%

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Question 5 2 pts

A smartphone company found in a survey that 6% of people did notown a smartphone, 15% owned a smartphone only, 26% owned asmartphone and only a tablet, 32% owned a smartphone and only acomputer, and 21% owned all three. If a person were selected atrandom, what is the probability that the person would own asmartphone only or a smartphone and computer?

42%

32%

47%

41%