Probability Test

Result

Probability Test - 9

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

A number is selected at random from 1 to 75. The probability that it is a perfect square is

A
8/75

B
10/75

C
6/75

D
4/75

Solution

Number of possible outcomes = {1, 4, 9, 16, 25, 36, 49, 64} = 8
Number of Total outcomes = 75
∴ Probability (of getting a perfect square) = 8/75
Question 2
1 / -0

A piggy bank contains 100 fifty paise coins, 50 one rupee coins, 20 two rupee coins and 10 five rupee coins. One coin is drawn at random. The probability that the coin drawn will not be a five rupee coin is

A
8/9

B
7/18

C
17/18

D
5/9

Solution

Number of total coins = 100 + 50 + 20 + 10 = 180
Number of coins except five rupee coins = 180 – 10 = 170
∴ Required Probability = 170/180 = 17/18
Question 3
1 / -0

The probability that it will rain on a particular day is 0.76. The probability that it will not rain on that day is

A
0.76

B
0.24

C
0

D
1

Solution

Given: P (It will rain on a particular day) = 0.76
∴ P (It will not rain on a particular day) = 1 – P (It will rain particular day)
= 1 – 0.76 = 0.24
Question 4
1 / -0

There are 20 boys and 15 girls in a class. A student is chosen as leader at random. The probability that the leader is a boy is

A
20

B
3/7

C
15

D
4/7

Solution

Number of boys = 20
Number of possible outcomes = 20
Number of Total outcomes = 20 + 15 = 35
∴ Required Probability = 20/35 = 4/7
Question 5
1 / -0

From a well shuffled pack of 52 cards, one card is drawn at random. The probability of getting a black king is

A
1/26

B
1/2

C
1/13

D
3/26

Solution

black kings = club king + spade king = 2
Number of possible outcomes = 2
Number of Total outcomes = 52
∴ Required Probability = 2/52 = 1/26
Question 6
1 / -0

From a well shuffled pack of 52 cards, one card is drawn at random. The probability of getting a red queen is

A
3/26

B
1/13

C
1/26

D
1/2

Solution

Red Queens = Diamond Queen + Heart Queen = 2
Number of possible outcomes = 2
Number of Total outcomes = 52
∴ Required Probability = 2/52 = 1/26
Question 7
1 / -0

An unbiased die is thrown once. The probability of getting a composite number is

A
1/3

B
2/5

C
2/3

D
1/2

Solution

Number of composite numbers on a dice = {4, 6} = 2
Number of possible outcomes = 2
Number of Total outcomes = 6
∴ Required Probability = 2/6 = 1/3
Question 8
1 / -0

From a well shuffled pack of 52 cards, one card is drawn at random. The probability of getting a diamond 10 is

A
1/52

B
4/52

C
3/52

D
2/52

Solution

Number of diamond 10 = 1
Number of possible outcomes = 1
Number of Total outcomes = 52
∴ Required Probability = 1/52

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Probability Test - 9

Result

Probability Test - 9

Score

-

Rank

-

SHARING IS CARING

Question 1

8/75

10/75

6/75

4/75

Solution

Question 2

8/9

7/18

17/18

5/9

Solution

Question 3

0.76

0.24

0

1

Solution

Question 4

20

3/7

15

4/7

Solution

Question 5

1/26

1/2

1/13

3/26

Solution

Question 6

3/26

1/13

1/26

1/2

Solution

Question 7

1/3

2/5

2/3

1/2

Solution

Question 8

1/52

4/52

3/52

2/52

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.