Probability

Probability

12th Grade - University

15 Qs

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Probability

Probability

Assessment

Quiz

Mathematics

12th Grade - University

Practice Problem

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Created by

Dr. Kotipalli

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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

What will be the probability of getting odd numbers if a dice is thrown?

0.2

0.5

1.5

3

Answer explanation

S = {1,2,3,4,5,6}

A = {1,3,5}

P{A} = n(A)/n(S)

= 3/6

= 1/2

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Out of 300 students in a school, 95 play cricket only, 120 play football only, 80 play volleyball only and 5 play no games. If one student is chosen at random, find the probability that

(i) he plays volleyball

4/15

2/5

1/3

1/2

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Out of 300 students in a school, 95 play cricket only, 120 play football only, 80 play volleyball only and 5 play no games. If one student is chosen at random, find the probability that

(ii) he plays either cricket or volleyball

4/15

2/5

7/12

1/5

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Out of 300 students in a school, 95 play cricket only, 120 play football only, 80 play volleyball only and 5 play no games. If one student is chosen at random, find the probability that

(iii) he plays neither football nor volleyball.

1/3

2/5

4/15

2/5

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

The probability of getting two tails when two coins are tossed is

1/6

1/2

1/3

1/4

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

1/2

2/5

8/15

9/20

Answer explanation

Here, S = {1, 2, 3, 4, ...., 19, 20}.

Let E = event of getting a multiple of 3 or 5 = {3, 6 , 9, 12, 15, 18, 5, 10, 20}.

P(E) = n(E)/n(S) = 9/20.

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?

10/21

11/21

2/7

5/7

Answer explanation

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