This skill teaches how to calculate the probability of picking a specific shape from a bag. The probability is determined by dividing the number of desired outcomes (e.g., picking a red triangle) by the number of all possible outcomes (e.g., all shapes in the bag).
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Probability of picking a shape from a bag
Test your understanding of probability of picking a shape from a bag by practicing it! Work through the below exercises to use it in practice.
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What is the probability of picking a red triangle from the bag?
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Probability is always the count of the outcomes we're looking for, divided by the count of all possible outcomes.
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We have 2 different ways to pick a red triangle
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And 5 possible ways to pick a shape from the bag
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So our probability is 2 out of 5. That's the same as 0.4, or 40%