AnswersOH-Geometry BSpecial Parallelograms

Probability and Two-Way Tables Answers

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The people who responded to a survey reported that they had either brown, green, blue, or hazel eyes. The results of the survey are shown in the table.

Question illustration
A
StartFraction 3 Over 25 EndFraction
Option A
B
StartFraction 7 Over 25 EndFraction
Option B
C
StartFraction 13 Over 25 EndFraction
Option C
D
StartFraction 17 Over 25 EndFraction
Option D
2
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In a standard deck of cards there are four suits: spades, clubs, hearts, and diamonds. Each suit has one each of 13 cards: ace, king, queen, jack, 2, 3, 4, 5, 6, 7, 8, 9, and 10.If event A is choosing a king, event B is choosing a heart, and event C is choosing a jack, which Venn diagram could represent this description?

A
Circles A and B overlap, and circles B and C overlap.
Option A
B
Circles A, B, and C overlap.
Option B
C
Circle A, B, and C are shown. They do not overlap.
Option C
D
Circles A and C overlap. Circle B is to the side.
Option D
3

Which events are independent? Select three options.Roll a number cube, and then roll the same number cube again.Flip a coin, and then flip the coin a second time. Remove a card from a deck, and then remove a second card.Draw a card from a deck, replace it, and then draw a second card.Take a marble out of a bag, and then take a second marble out of the bag.

A
Roll a number cube, and then roll the same number cube again.
B
Flip a coin, and then flip the coin a second time.
C
Remove a card from a deck, and then remove a second card.
D
Draw a card from a deck, replace it, and then draw a second card.
E
Take a marble out of a bag, and then take a second marble out of the bag.
4

Which scenario depicts two independent events?

A
The school play opens tonight and it is raining.
B
Neva is hungry and she buys a snack from the concession stand.
C
Ari chooses a partner for a group project and then Ezekial chooses a partner from the remaining classmates.
D
Luka paints during school and he stains his shirt.
5

A bag contains eleven equally sized marbles, which are numbered. Two marbles are chosen at random and replaced after each selection.

Question illustration
A
StartFraction 10 Over 121 EndFraction
Option A
B
StartFraction 24 Over 121 EndFraction
Option B
C
StartFraction 6 Over 11 EndFraction
Option C
D
StartFraction 10 Over 11 EndFraction
Option D
6

When a softball player gets a hit, it can be a single, double, triple, or home run. When Josephine is at bat, the probability that she hits a single is 15 percent and the probability that she hits a double is 5 percent.What is the probability that Josephine hits a single or a double when she is at bat?

A
3 percent
B
10 percent
C
20 percent
D
75 percent
7

Students in a class were surveyed about the number of children in their families. The results of the survey are shown in the table.

Question illustration
A
StartFraction 1 Over 50 EndFraction
Option A
B
StartFraction 2 Over 15 EndFraction
Option B
C
StartFraction 3 Over 20 EndFraction
Option C
D
StartFraction 17 Over 60 EndFraction
Option D
8

A bicycle manufacturer is studying the reliability of one of its models. The study finds that the probability of a brake defect is 4 percent and the probability of both a brake defect and a chain defect is 1 percent.If the probability of a defect with the brakes or the chain is 6 percent, what is the probability of a chain defect?

A
1.5 percent
B
2 percent
C
2.5 percent
D
3 percent
9

A bag contains eleven equally sized marbles, which are numbered.

Question illustration
A
Two-elevenths
Option A
B
Three-elevenths
Option B
C
Five-elevenths
Option C
D
Six-elevenths
Option D
10

All freshmen, sophomores, juniors, and seniors attended a high school assembly. The total student attendance is shown in the table.

Question illustration
A
StartFraction 11 Over 320 EndFraction
Option A
B
StartFraction 3 Over 80 EndFraction
Option B
C
StartFraction 11 Over 40 EndFraction
Option C
D
Two-fifths
Option D

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