Introduction to Probability

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.
• a word Mr. Macias created for fun.

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CCSS.7.SP.C.5

Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

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CCSS.7.SP.C.5

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

• 30%
• 70%
• 100%
• 0%

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CCSS.7.SP.C.5

A set of all possible outcomes is known as - 

• a list
• a complement
• a sample space
• an event

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What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

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CCSS.7.SP.C.5

What is the probability of spinning red?

• 0
• 5/12
• 1/2
• 3/4

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CCSS.7.SP.C.5

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7
• 5/49
• 5/7
• 10/49

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

Find the probability of drawing a 10 from a standard deck of 52 cards.

• 1 out of 52
• 13 out of 52
• 26 out of 52
• 4 out of 52

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement.P(both marbles are purple)

• 2/9
• 1/3
• 1/2
• 1/4

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced.
P(white, then purple, then black)

• 1/36
• 2/39
• 5/41
• 6/43

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8