Lesson 30 - 31 Review

Probability Quiz Review

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Multiple Select

Decide if the probability in each statement is described by the likelihood of the event occurring. Select ALL that are true.

• If the probability of an event is 1/8, then the event is VERY LIKELY.

• If the probability of an event is 14/28, then the event is EQUALLY LIKELY AS NOT.

• If the probability of an event is 0, then the event is IMPOSSIBLE.

• If the probability of an event is 39/80, then the event is LIKELY.

Multiple Choice

Select the spinner with the following characteristics:

Landing on A, B, C, or D is certain.

It is likely to land on C than not.

It is equally as likely to land on A as D.

Multiple Choice

A baseball player gets on base 3 out of 5 times. Based on his results, how many of his next 20 at bats will he not get on base?

• 8

• 2

• 12

• 15

Multiple Choice

There are 52 cards in a deck. Each card contains a letter or a number. Mel selects a card at random, records the letter or number, and puts the card back in the deck. The results of his first 8 trials are F, 2, G, 3, 8, 7, R, and 4. Using Mel's results, how many letter cards will Mel select in 32 trials?

• 20

• 12

• 3

• 5

​https://youtu.be/Lh-0hESInrw

​https://youtu.be/Lh-0hESInrw

Multiple Choice

There is an upcoming election in our town. You ask a random sample of voters whether they plan to vote for the current governor, against the current govenor, or if they are undecided. The results are 15 for the current Govenor, 20 agains the current govenor, and 5 are undecided. Use these results to predict how many people will be for, against, or undecided in a group of 1200 voters.

• 15 for

  20 against

  5 undecided

• 18,000 for

  24,000 against

  6,000 undecided

• 450 for

  600 against

  150 undecided

• 500 for

  600 against

  100 undecided

​https://youtu.be/C4hg1vR5cE4