## Probability

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#### Study Guide Probability Mathematics, Grade 2

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PROBABILITY Probability is the CHANCE of whether something will happen or not. If two things or events have the same chance of happening, we say then they have the SAME probability. For example: If we flip a coin (let’s say a quarter) into the air, the chance of the coin landing on heads is the SAME as the chance of the coin landing on tails. This is because there is ONE side that has a head and ONE side that has a tail so there is an EQUAL chance that the coin will land on heads or tails. If there is a HIGH (very great) chance of something happening, we say that there is a HIGH probability of that something happening. For example: There is a HIGH probability that you will go to sleep tonight. If there is a BETTER chance or MORE chances of something happening than something else, than we say there is a HIGHER probability of that something happening. For example: There is a HIGHER probability that it will snow during the winter time than during the summer time. This is because winter usually brings cold weather and snow. Summer time usually brings warmer weather. It usually does NOT snow during the summer. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
If there is a LOW (very little) chance of something happening, we say that there is a LOW probability of that something happening. For example: There is a LOW probability that you will find a \$100 bill today. If there is a LOWER chance of something happening than something else, than we say there is a LOWER probability of that something happening. For example: There is a LOWER probability that I will be allowed to eat ice cream for breakfast rather than cereal. A parent would most likely allow you to eat cereal and NOT ice cream for breakfast. You Try There is a ___________ probability that I will eat lunch tomorrow. a) high b) low Answer: a) a high Hopefully you eat a good lunch every day! © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.