# Unit 7 Review

## 15 questions

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• 1. Multiple-choice
2 minutes
1 pt

Molly makes 70% of her free throws. The random numbers below represent 20 trials of a simulation of two free throws. Let the numbers 0 to 6 represent a successful free throw and 7 to 9 represent a missed free throw. Based on the simulated results, the probability that Molly make both free throws is what?

38 38 21 50 64 71 66 42 47 90

80 92 29 98 27 87 89 89 93 03

30%

55%

70%

25%

• 2. Multiple-choice
2 minutes
1 pt

About 50% of the people surveyed in a certain county work for a small business. A random number generator was used to simulate the results of the next four people surveyed.

The numbers 0 to 4 represent people who work for a small business, and the numbers 5 to 9 represent people who do not work for a small business.

6411 0501 7582 0403 3074 7383 5250 2235 0803 3750

7694 9225 7121 4493 7596 8223 1288 8121 7652 3154

Based on the simulated results show above, what is the probability that at LEAST one of the next four people surveyed works for a small business?

95%

15%

5%

80%

• 3. Multiple-choice
1 minute
1 pt

After many studies, a researcher finds that the probability that a word recognition app correctly interprets a handwritten word is 9/10. Which statement is true?

It is impossible that the handwritten word will be correctly interpreted.

It is unlikely that the handwritten word will be correctly interpreted.

It is likely that the handwritten word will be correctly interpreted.

It is certain that the handwritten word will be correctly interpreted.