AnswersOC27 GEO-1206310-S2-Degele-VOL7006PVolume of Cylinders, Cones, and Spheres

Independent and Mutually Exclusive Events Answers

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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
2
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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.
3

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
4

An amusement park reports that the probability of a visitor riding its largest roller coaster is 30 percent, the probability of a visitor riding its smallest roller coaster is 20 percent, and the probability of a visitor riding both roller coasters is 15 percent.Which equation can be used to calculate the probability of a visitor riding the largest or the smallest roller coaster?

A
P(largest or smallest) = 0.30 - 0.20
B
P(largest or smallest) = 0.30 + 0.15 - 0.20
C
P(largest or smallest) = 0.30 + 0.20 - 0.15
D
P(largest or smallest) = 0.30 + 0.20
5

The Hawaiian language has 12 letters: five vowels and seven consonants. Each of the 12 Hawaiian letters are written on a slip of paper and placed in the bag. A letter is randomly chosen from the bag and then replaced. Then, a second letter is randomly chosen from the bag.What is the probability that two vowels are chosen?

A
StartFraction 5 Over 72 EndFraction
Option A
B
StartFraction 25 Over 144 EndFraction
Option B
C
StartFraction 7 Over 12 EndFraction
Option C
D
Five-sixths
Option D
6

Under the best conditions, a sprout has a 40% probability of blooming.If two sprouts are selected at random, what is the probability that both will bloom, under the best conditions?

A
16 percent
B
24 percent
C
40 percent
D
80 percent
7

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
8

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
9

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
10

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

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