Applying Probability Rules

Name: Revolt
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Question 1

Two children are playing a code-breaking game. One child makes a sequence of three colors from red, yellow, blue, and purple. The other child must guess the sequence of colors in the correct order. Once one color is used, it cannot be repeated in the sequence.

Revolt · Accepted Answer

A:

Question 2

The track team gives awards for first, second, and third place runners. There are 10 students from school A and 12 students from school B competing.Which expression represents the probability that all three awards will go to a student from school B?

Revolt · Accepted Answer

A: StartFraction 12 P 3 Over 22 P 3 EndFraction

Question 3

A standard deck of 52 playing cards contains four of each numbered card 2–10 and four each of aces, kings, queens, and jacks. Two cards are chosen from the deck at random.Which expression represents the probability of drawing a king and a queen?

Revolt · Accepted Answer

D:

Question 4

A landscaper is selecting two trees to plant. He has five to choose from. Three of the five are deciduous and two are evergreen.What is the probability that he chooses trees of two different types? Express your answer as a percent.

Revolt · Accepted Answer

6: 60%

Question 5

At a high school, students can choose between three art electives, four history electives, and five computer electives. Each student can choose two electives.Which expression represents the probability that a student chooses an art elective and a history elective?

Revolt · Accepted Answer

C: StartFraction (3 C 1) (4 C 1) Over 12 C 2 EndFraction

Question 6

Six girls and four boys have entered the science fair. First, second, and third place awards are to be given out.What is the probability that a girl wins the first place award while boys will receive the second and third place awards? Express your answer as a percent.

Revolt · Accepted Answer

1: 10%

Question 7

Six sophomores and 14 freshmen are competing for two alternate positions on the debate team.Which expression represents the probability that both students chosen are sophomores?

Revolt · Accepted Answer

A:

Question 8

A bag contains 10 red marbles, 15 yellow marbles, 5 green marbles, and 20 blue marbles. Five marbles are drawn from the bag.What is the approximate probability that exactly two of the five are blue?

Revolt · Accepted Answer

3: 36%

Question 9

A restaurant offers three vegetable side dishes, two fruit side dishes, and five grain-based side dishes. Each entree comes with two side dishes.What is the approximate probability of randomly choosing one vegetable and one grain-based side dish?

Revolt · Accepted Answer

0: 0.33333

Question 10

Two unique letters are chosen at random from the alphabet.What is the approximate probability that the first letter chosen is A?

Revolt · Accepted Answer

0: 0.0385

Applying Probability Rules Answers

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