Name ____________________________

Unit 9 Final Assessment

1. Give two examples for the use of random number generators.

2. Name one way to display data from a random number generator. Why would it be used?

Answer the questions as they relate to probability.

3. For rolling a four on the number cube:

a. List each favorable outcome.

b. Count the number of favorable outcomes.

c. Write the total number of outcomes.

Use the spinner to answer the questions below.

4. What is the probability of the spinner landing on nine?

5. What is the probability of the spinner landing on a silver number greater than four?

Answer each question and write the probability as a fraction, a decimal and a percent.

6. A clothes dryer contains 12 socks. What is the probability of pulling out a white sock?

7. What is the probability of pulling a blue or red sock out of the dryer?

Alex Rodriguez compiled this batting record shown over the first five months of the 6-month season. Based on A-Rod’s monthly home run total, predict the number of total home runs Rodriguez will have at the end of the month of September. [source for A-Rod: ESPN.com]

8. If A-Rod’s team plays one game each day during the month of September, and his home runs are evenly distributed throughout the month, predict the date on which Rodriguez will hit home run number 50.

9. At the end of August, A-Rod had 489 at-bats. Predict the total number of at-bats A-Rod will have on the day he hits home run number 50.

10. Suppose at the end of April you were asked to predict the number of homeruns A-Rod would over an entire 6-month season. What would your prediction be?