Simple Probability & ODDS

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What is Theoretical Probability?

Back

Theoretical Probability is the likelihood of an event occurring based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of outcomes.

Tags

CCSS.7.SP.C.7A

Front

What is the formula for calculating probability?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes)

Tags

CCSS.7.SP.C.7A

Front

What are odds in probability?

Back

Odds represent the ratio of the number of ways an event can occur to the number of ways it cannot occur.

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How do you express odds?

Back

Odds are expressed in the form 'A : B', where A is the number of favorable outcomes and B is the number of unfavorable outcomes.

Front

What is the probability of NOT landing on a specific color in a spinner with 3 colors?

Back

If there are 3 colors, the probability of NOT landing on a specific color is (Total colors - 1) / Total colors.

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What does it mean for an event to be 'impossible'?

Back

An event is considered impossible if it cannot occur, such as rolling a 15 on a standard number cube.

Tags

CCSS.7.SP.C.5

Front

What does it mean for an event to be 'certain'?

Back

An event is certain if it is guaranteed to happen, such as rolling a number between 1 and 6 on a standard number cube.

Tags

CCSS.7.SP.C.5

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What is a simplified fraction?

Back

A simplified fraction is a fraction that has been reduced to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

What is the probability of rolling a number greater than 6 on a standard die?

Back

0%, as a standard die only has numbers 1 through 6.

Tags

CCSS.7.SP.C.5

Front

If the odds of an event are 1 : 5, what is the probability of that event occurring?

Back

Probability = 1 / (1 + 5) = 1/6 or approximately 16.67%.