Chapter 11 - School District #35

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Name: ___________________________________________________ Date: ______________ 7. a) Complete the tree diagram to find the outcomes for 2 spinners. b) Draw a picture of each spinner. Spinner 1 Spinner 2 Outcome A A B 2 2 2 3 2 2 2 3 2 2 2 3 c) What is P(A, 3)? Sentence: ___________________________ ___________________________________ 8. The weather forecaster predicts that there is a 70% chance of rain in Victoria and a 20% chance of rain in Calgary. What is the probability that it will rain in both cities? ÷ ______ 70% is the same as 0.70, 70 100 , or 7 10 . 20% = = 100 10 ÷ ______ P(rain in Victoria, rain in Calgary) = P(Victoria) × P(Calgary) = × = Sentence: _________________________________________________________________ 622 MHR ● Chapter 11: Probability
Name: _____________________________________________________ Date: ______________ You toss 3 sticks. a) What is the theoretical probability that all 3 of them land decorated side up? P(decorated, decorated, decorated) = P(decorated) × P(decorated) × P(decorated). P( , , ) = × × = b) Create a simulation to find the experimental probability of 3 sticks landing decorated side up. Step 1: Use a coin, because it has 2 possible outcomes. Step 2: Do 10 or more trials. Step 3: Draw a chart to record your results. Use the headings below. Let heads represent the decorated side and tails represent the bare side. Trials 1 Stick 1 (First toss) Stick 2 (Second toss) Stick 3 (Third Toss) All Three Decorated Side Up? (yes or no) 2 Step 4: What is the experimental probability that all 3 sticks landed decorated side up? P( , , ) = favourable outcomes total number of trials = c) Compare the experimental and theoretical probabilities. __________________________________________________________________________ 11.3 Math Link ● MHR 623
Page 1 and 2: CHAPTER 11 Probability GET READY 58
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Page 55: Wrap It Up!, page 631 7. a) Flip #1

Chapter 11 - School District #35

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