1.1 What's the Chance: Theoretical Probability
TODAY'S AGENDA: We are learning probability and theoretical probability and their applications in real world.
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1) Watch the video below and read the provided information with a partner.
2) Submit your response to "Would you jump into this deal?" question. 3) Read "Wheel of Fortune" section and answer the questions 4) Complete pages 6, 7, 8, and 9. |
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What's Probability?
How likely something is to happen or not happen. Many events can't be predicted with total certainty. The best we can say is how likely they are to happen, using the idea of probability. Theoretical Probability
Chance of something happening in a perfect world. If I toss a coin 10 times, I will get 5 heads and 5 tails because there are two sides of a coin. Therefore, the probability is 1/2 or 50% (1 : 2 x 100) |
Some examples of probability
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a) Throwing Dice
When a singe die is thrown, there are six possible outcomes: 1, 2, 3, 4, 5, and 6. The probability of any one of them is 1/6 (1 out 6). b) Tossing a Coind When a coin is tossed, there are two possible outcomes:
We say that the probability of the coin landing H in a perfect world is 1/2. And landing T in a perfect world is 1/2. c) Drawing a Card A standard deck of cards has 4 suits. Each suit has 12 cars. We say that the probability of drawing a heart is 12/52 (12 out of 52) or 1/13. The probability of drawing a 7 is 4/52 because there are 4 different 7s in the deck or 1/13 because there is only one 7 in a suit. Adapted from www.mathisfun.com |
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Would you jump into this deal?
You are hanging out with your friend before school one day. Your friend says that if you pull a jack out of the deck of cards on your first try, she will buy you lunch. But if you do not pull out a jack, you will have to buy your friend lunch.
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Wheel of Dinner: What do we eat tonight?
Your family cannot decide on what to eat tonight. After learning probability concept in class, you design a game for them. As a family you agree on spinning the wheel 24 times and whichever food lands the most will be the winner for tonight. On your wheel, you have 5 burger, 4 pizza and 3 steak slices. |
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1) Which food has a higher chance?
3) What is the theoretical probability of landing Pizza?
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2) What is the theoretical probability of landing Burger?
4) What is the theoretical probability of landing Steak?
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