Simple Probability

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What is probability?

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Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 means the event will not happen and 1 means it will definitely happen.

Tags

CCSS.7.SP.C.5

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What is the formula for calculating probability?

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The formula for probability is: Probability (P) = Number of favorable outcomes / Total number of possible outcomes.

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CCSS.7.SP.C.7A

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What is a favorable outcome?

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A favorable outcome is the specific result that we are interested in when calculating probability.

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What is the total number of outcomes when rolling a fair six-sided die?

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The total number of outcomes is 6, as there are six faces on the die.

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If you roll a die, what is the probability of rolling a 3?

Back

Tags

CCSS.7.SP.C.7A

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In a bag with 4 red, 3 blue, and 5 green marbles, what is the probability of picking a blue marble?

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CCSS.7.SP.C.7B

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What is the probability of selecting a brown candy from a bowl with 2 brown candies out of 20 total candies?

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CCSS.7.SP.C.7B

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How do you express probability as a percentage?

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To express probability as a percentage, multiply the probability by 100.

Tags

CCSS.7.SP.C.5

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What is the probability of spinning a green section on a spinner divided into 4 equal parts, where 1 part is green?

Back

Tags

CCSS.7.SP.C.7A

Front

If there are 10 letters in the word 'ALGEBRA', what is the probability of choosing a letter that is NOT 'A'?

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Tags

CCSS.7.SP.C.7B