Simple Probability

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What is the definition of probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Tags

CCSS.7.SP.C.5

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How is probability calculated for a single event?

Back

Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Tags

CCSS.7.SP.C.7A

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What is the probability of choosing a letter 'M' from the word 'MATHEMATICS'?

Back

The probability is 2/11, as there are 2 'M's in a total of 11 letters.

Tags

CCSS.7.SP.C.7B

Front

What is the probability of rolling a sum of 15 with two six-sided dice?

Back

It is impossible to roll a sum of 15 with two six-sided dice, as the maximum sum is 12.

Tags

CCSS.7.SP.C.5

Front

What is the probability of choosing a letter 'M' or 'T' from the word 'MATHEMATICS'?

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The probability is 4/11, as there are 2 'M's and 2 'T's in a total of 11 letters.

Tags

CCSS.HSS.CP.B.7

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What is the difference between experimental and theoretical probability?

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Theoretical probability is based on the expected outcomes in a perfect scenario, while experimental probability is based on actual results from experiments.

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What is an example of experimental probability?

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An example of experimental probability is spinning a spinner 100 times and recording the outcomes.

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What does it mean if an event has a probability of 'certain'?

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If an event has a probability of 'certain', it means that the event will definitely occur, with a probability of 1.

Tags

CCSS.7.SP.C.5

Front

What is the probability of drawing a green marble from a bag containing only green marbles?

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The probability is certain, as all marbles are green.

Tags

CCSS.7.SP.C.5

Front

How do you express probability as a fraction?

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Probability can be expressed as a fraction by using the formula: P(Event) = Number of favorable outcomes / Total number of outcomes.

Tags

CCSS.7.SP.C.7A