Exploring Probability and Likelihood Concepts

This video tutorial covers the basics of probability, including the probability scale, calculating probabilities, and using examples to illustrate these concepts. It explains how probabilities are numbers between 0 and 1, representing the likelihood of an event. The tutorial also demonstrates how to calculate probabilities using fractions and provides practical examples with shirts and hats to reinforce understanding.

What does a probability of 0 indicate about an event?

• The event is impossible to happen

• The event is unlikely to happen

• The event is likely to happen

• The event is certain to happen

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CCSS.7.SP.C.5

Which of the following probabilities indicates a certain event?

• 0

• 0.5

• 1

• 0.25

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CCSS.7.SP.C.5

If an event has a probability of 1/2, how is it described?

• Equally likely

• Unlikely

• Impossible

• Certain

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CCSS.7.SP.C.7A

What is the probability of rolling an odd number on a standard die?

• 1/2

• 1/3

• 1/6

• 3/6

How many possible outcomes are there when flipping a coin?

• 4

• 1

• 2

• 3

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CCSS.7.SP.C.7B

What is the probability of choosing a green shirt from a shelf of 10 shirts, where 2 are green?

• 3/10

• 2/10

• 1/5

• 1/10

What is the probability of not choosing a white shirt from a selection where only one shirt is white?

• 1/2

• 2/10

• 1/10

• 9/10

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CCSS.7.SP.C.7B

If you have 12 hats and 4 are black, what is the probability of choosing a black hat?

• 1/3

• 4/12

• 1/4

• 2/3

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CCSS.7.SP.C.7B

What does the probability of choosing a red or a blue hat from a total of 3 red and blue hats out of 12 indicate?

• 3/12

• 1/4

• 2/5

• 1/3

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CCSS.7.SP.C.7B

What is the probability of not choosing a green hat when there are 3 green hats out of 12?

• 9/12

• 1/4

• 3/4

• 3/12

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CCSS.7.SP.C.7B