3) Solve

16)What is the probability of guessing the correct answer to a mulitple choice question if there are 5 choices?

The pobability is 20%.

explanation: You find this answer by taking the number of outcomes which is "1," and then divide it by the total possible outcome, which is "5."

1/5 = 0.2% * 100 = 20%

17) What is the probability of guessing the correct answer to a true and false question?

explanation: There are only two answers which is true and false so "2," is the total possible outcome. And you can only choose "1," answer so "1' is the number of outcomes.

So make it into a fractionand percent.

1/2 = 0.5% * 100 = 20%

18) what is the probability that your birthday will fall on Saturday or Sunday?

explanation: There are 7 dats in a week, so "7" is your total possible outcome. Saturday and Sunday are only 2 so that's your number outcomes. Make it into a fraction and a percent.

2/7 = 0.2857% * 100 = 28.57%

## Thursday, October 19, 2006

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