1. Do Now 5/20/13 Take out HW from the weekend. Take out HW from the weekend.  Cumulative Test Chapters 1-9 Copy HW in your planner. Copy HW in your planner.  Text p. 408, #1-16  Text p. 412, #3-10  Quiz sections 10.1-10.4 Friday Be ready to copy POTW #8 Be ready to copy POTW #8

2. Learning Goal SWBAT use informal measures of probability SWBAT find experimental probability

3. Section 10.1 “Probability” Probability- is the measure of how likely an event is to occur. It is written as P(event). Each repetition of an experiment is called a trial. Each result is called an outcome.

4. The probability of something occurring is always between 0 and 1. The probability of something occurring is always between 0 and 1. “Interpreting Probabilities” 0 1 0.5 Impossible Certain to occur Unlikely to occur Likely Likely to occur 0.25 0.75 As likely as not 0 100% 50%25% 75% 0 1 1/21/4 3/4

5. Determine whether the event is impossible, unlikely, as likely as not, likely, or certain. Flipping a ‘head’ or ‘tail’ on a coin certain The temperature will be above 60°F in July. likely Rolling a 1, 3, or 5 on a fair dice as likely as not

6. COMPLEMENT The of an event is the set of all outcomes that are NOT the event. If the probability of rolling a 5 with a single dice is, then the probability of NOT rolling a 5 would be. If the probability of rolling a 5 with two dice is, then the probability of NOT rolling a 5 would be.

7. Experimental probability- comparing the number of times the event occurs to the number of trials Section 10.2 “Experimental Probability”

8. Probability Applications So far this softball season, Tanya has gotten 8 hits out of 26 at bats. What is the experimental probability that she will get a hit on her next at bat? What is Tanya’s batting average? Tanya’s batting average would be 0.308

9. Probability Applications Pam is playing darts. She hit the bull’s eye 7 times out of 20 throws. What is the experimental probability that Pam will hit the bull’s eye on her next throw as a fraction and percent? What is the experimental probability that she will NOT hit the bull’s eye? 35% 65%

10. “Experimental Probability” Draw the following circle chart on your paper. Shade in the blue areas on your chart with your pencil. Using your pencil and a paperclip spin your spinner 8 times. Record the number of times where the spinner stopped. Do your experimental outcomes match the theoretical outcomes? Why or why not?

11. Homework  Text p. 408, #1-16  Text p. 412, #3-10