Combinations and Probability

Lesson 5 Combining Events

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How many students have a cat?

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How many students have a cat or a dog?

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How many students have a cat and a dog?

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How many students do not have a cat?

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How many students do not have a cat or a dog?

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Which numbers are multiples of 2?

Write each number separated by a comma and a space.

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Which numbers are multiples of 3?

Write each number separated by a comma and a space.

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Which numbers belong in the region where the two circles overlap?

Write each number separated by a comma and a space.

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Which whole numbers between 1 and 12 are not contained inside either circle in the Venn diagram?

Write each number separated by a comma and a space.

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What is the probability that a whole number between 1 and 12, selected at random, is a multiple of two or three?

Write your answer as a decimal with two decimal spaces.

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What is the probability that a whole number between 1 and 12, selected at random, is not a multiple of 2?

Write your answer as a decimal with two decimal spaces.

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What is the probability that a student selected at random prefers peach slices as a snack?

Write your answer as a decimal rounded to two decimal places.

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What is the probability that a student selected at random prefers an apple or carrot sticks as a snack?

Write your answer as a decimal rounded to two decimal places.

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What is the probability that a student in class A selected at random prefers an apple as a snack?

Write your answer as a decimal rounded to two decimal places.

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What is the probability that a student selected at random is in class B and prefers carrot sticks as a snack?

Write your answer as a decimal rounded to two decimal places.

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What is the probability that the person has a college diploma and makes $40,000 or less?

Write your answer as a decimal rounded to two decimal places.

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What is the probability that the person doesn't have a college diploma and earns more than $40,000?

Write your answer as a decimal rounded to two decimal places.

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What percentage of the samples had an above average growth rate?

Express your answer as a decimal rounded to two decimal places, not a percent.

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What percentage of the samples at 70 degrees had an above average growth rate?

Express your answer as a decimal rounded to two decimal places, not a percent.

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What percentage of the samples were at 80 degrees?

Express your answer as a decimal rounded to two decimal places, not a percent.

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What percentage of the samples that had an average growth rate were at 80 degrees?

Express your answer as a decimal rounded to two decimal places, not a percent.