Simple Probability & Predictions

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1.

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CCSS.7.SP.C.5

Front

What is the probability of rolling a 2 or a 3 on a number cube (1-6)?

Back

1/3

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CCSS.HSS.CP.B.7

Front

If you roll a die 90 times, how many times would you expect to roll a number less than or equal to 5?

Back

75 times

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CCSS.7.SP.C.6

Front

What does it mean if a gift was favored 16% of the time in a survey?

Back

It means that out of 100 responses, approximately 16 people chose that gift as their favorite.

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CCSS.6.SP.A.2

Front

If you have 12 shapes in a bag and you predict pulling out a circle 60 times, how many circles are expected if you replace each shape after pulling?

Back

25 times

Tags

CCSS.7.SP.C.6

Front

How do you calculate the expected number of students choosing a specific animal based on a survey?

Back

Use the proportion from the survey to predict for a larger group. For example, if 60 out of 100 chose a giraffe, then for 250 students, expect 60 students.

Tags

CCSS.7.SP.A.2

Front

What is a number cube?

Back

A number cube is a six-sided die with faces numbered from 1 to 6.

Front

What is the formula for calculating probability?

Back

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

Tags

CCSS.7.SP.C.7A

Front

If 25 people were surveyed and 16% favored a gift, how many people is that?

Back

4 people favored that gift (16% of 25 is 4).

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CCSS.6.RP.A.3C

Front

What is the expected outcome when rolling a fair die?

Back

Each number (1-6) has an equal probability of 1/6.

Tags

CCSS.7.SP.C.7A