Unit 6 Probability Study Guide

Help with 1 What is the probability of something that is IMPOSSIBLE TO HAPPEN?

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• 1

• 100%

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CCSS.7.SP.C.5

Help with 1b What is the probability of something that is CERTAIN TO HAPPEN?

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CCSS.7.SP.C.5

Help with 1c A spinner is divided into 8 regions of equal size. The spinner is spun and lands on a number. What is the probability that the spinner will land on the number 1?

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CCSS.7.SP.C.7A

Like 1 A spinner is divided into 8 regions of equal size. The spinner is spun and lands on a number. Which choice describes the likelihood that the spinner lands on 1?

• impossible

• likely

• as likely as not

• unlikely

• certain

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CCSS.7.SP.C.5

Like 3 The weather report says there is a 28% chance that it will snow. What is the probability that it will not snow?

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CCSS.7.SP.C.5

Like 4 If you spin the spinner shown, what is the probability of the spinner stopping on a consonant?

TIP: There are 21 consonants in the English alphabet—B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, W, X, Y, Z.

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CCSS.7.SP.C.7B

Like 5 A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red or yellow?

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CCSS.7.SP.C.7B

Like 6 A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a yellow?

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CCSS.7.SP.C.7B

Like 6 and 7 A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a blue?

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CCSS.7.SP.C.7B

Like 6 and 7 A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a green?

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CCSS.7.SP.C.7B