Quiz 6.1 Review - Probability

A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A marble is chosen at random from the jar and replaced. Then a second marble is chosen at random. Find the probability of the first marble being green and the second marble being yellow. 

• 4/121
• 8/121
• 3/121
• 6/121

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CCSS.7.SP.C.5

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A bag contains 5 yellow, 4 green, and 2 blue marbles. One marble is drawn and immediately put back in the bag. Then a second marble is drawn. Identify whether the events are independent or dependent. 

• Independent
• Dependent

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CCSS.7.SP.C.5

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Two cards are drawn from a standard deck of cards and no cards are returned to the deck. Identify whether the events are independent or dependent. 

• Independent
• Dependent

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P(2 then 5) =

• 1/6

• 1/12

• 1/36

How do you find compound probability?

First, determine the probability of each event in fraction form then,

• Multiply the fractions.

• Add the fractions.

• Divide the fractions.

• Subtract the fractions.

You choose one card, replace it, then choose a second card. What is the P(A then A) = _____

• 4/81

• 2/9

• 2/7

• 4/18

A box contains 3 blue, 3 white, 2 red, and 4 purple crayons. You pick one crayon, set it aside, and choose another crayon. What is the P(blue, blue) = ___

• 1/22

• 6/144

• 1/4

• 6/6

There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?

• 2/5
• 1/21
• 4/25
• 1/7

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CCSS.7.SP.C.5

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There are 2 violet balls and 4 pink balls in a bag. If two balls are drawn one after the other, then what is the probability of getting violet first and pink next, if the first ball drawn is replaced?

• 1/3
• 2/9
• 1/6
• 1/4

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CCSS.7.SP.C.5

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CCSS.7.SP.C.8

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

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