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Mastering Probability Concepts

Authored by Dina Valdoria

Mathematics

10th Grade

Mastering Probability Concepts
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

What is the probability of rolling a sum of 7 with two dice?

1/12

1/8

1/4

1/6

2.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

If a coin is flipped three times, what is the probability of getting exactly two heads?

0.25

0.375

0.5

0.625

3.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

A bag contains 3 red, 2 blue, and 5 green marbles. What is the probability of drawing a blue marble?

1/3

1/4

1/5

2/5

4.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

If two events A and B are independent, and P(A) = 0.4 and P(B) = 0.5, what is P(A and B)?

0.1

0.6

0.3

0.2

5.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

A card is drawn from a standard deck of 52 cards. What is the probability that it is a heart?

1/4

1/2

2/5

1/3

6.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

In a class of 30 students, 18 are girls. If a student is chosen at random, what is the probability that the student is a boy?

1/3

2/5

1/2

3/5

7.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

If the probability of rain tomorrow is 0.3, what is the probability that it will not rain?

0.7

0.5

0.1

0.9

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