Probability Test

Result

Probability Test - 60

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Weekly Quiz Competition

Question 1
4 / -1

The chances of fail in physics are 20% and the chances to fail in Mathematics are 10%. What are the chances to fail in at least one subject

A
28%

B
38%

C
72%

D
82%

Solution
Question 2
4 / -1

A
Independent but not equally likely

B
Mutually exclusive and independent

C
Equally likely and mutually exclusive

D
Equally likely but not independent

Solution
Question 3
4 / -1

If A and B are two independent events such that P(A) = 0.40, P(B) = 0.50. Find P(neither A nor B)

A
0.90

B
0.10

C
0.2

D
0.3

Solution
Question 4
4 / -1

A card is drawn from a pack of cards. Find the probability that the card will be queen or a heart

A

B

C

D

Solution
Question 5
4 / -1

If an integer is chosen at random from first 100 positive integers, then the probability that the chosen number is a multiple of 4 or 6 is

A

B

C

D
None of these

Solution
Question 6
4 / -1

If the probability of a horse A winning a race is ¼ and the probability of a horse B winning the same race is 1/5, then the probability that either of them will win the race is

A

B

C

D

Solution
Question 7
4 / -1

A

B

C

D

Solution
Question 8
4 / -1

A

B

C

D

Solution
Question 9
4 / -1

The probabilities that A and B will die within a year are p and q respectively, then the probability that only one of them will be alive at the end of the year is

A

B

C

D

Solution
Question 10
4 / -1

In a certain population 10% of the people are rich, 5% are famous and 3% are ricj and famous. The probability that a person picked at random from the population is either famous or rich but not both is equal to

A
0.07

B
0.08

C
0.09

D
0.12

Solution