Big Ideas Math: Modeling Real Life, Grade 7
BI
Big Ideas Math: Modeling Real Life, Grade 7 View details
1. Probability
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Exercise 20 Page 289

Practice makes perfect
We know that we randomly choose one marble from the bag. We want to find the number of ways in which we can choose a purple marble. We can do so by calculating the number of purple marbles on the diagram!
We can see on the diagram that there are 2 purple marbles. This means that we can choose green in 2 ways.
We want to find the favorable outcomes of choosing purple. We can recall that the outcomes of a specific event, in this case choosing purple, are called favorable outcomes. We can determine the favorable outcomes using our diagram!
The favorable outcomes include choosing one of the 2 purple marbles from the bag. We can use this information to list the favorable outcomes! Favorable Outcomes purple, purple