Probability Test

Result

Probability Test - 72

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Weekly Quiz Competition

Question 1
4 / -1

If two coins are tossed 5 times, then the probability of getting 5 heads and 5 tails is

A

B

C

D

Solution
Question 2
4 / -1

In a binomial distribution the probability of getting a success is ¼ and standard deviation is 3, then its mean is

A
6

B
8

C
12

D
10

Solution
Question 3
4 / -1

A coin is tossed 10 times. The probability of getting exactly six heads is

A

B

C

D

Solution
Question 4
4 / -1

If a dice is thrown twice, the probability of occurrence of 4 at least once is

A

B

C

D
None of these

Solution
Question 5
4 / -1

A dice is thrown 100 times and getting an even number is considered a success. The variance of the number of successes will be

A
10

B
25

C
18

D
11

Solution
Question 6
4 / -1

A coin is tossed n times. The probability of getting head at least once is greater than 0.8, then the least value of n is

A
2

B
3

C
4

D
5

Solution
Question 7
4 / -1

If X follows a binomial distribution with parameters n = 100 and p = 1/3, then P(X = r) is maximum when r is equal to

A
16

B
32

C
33

D
None of these

Solution
Question 8
4 / -1

One coin is thrown 100 times. The probability of coming tail in odd number

A

B

C

D
None of these

Solution
Question 9
4 / -1

A coin is tossed 3 times. The probability of obtaining at least two heads is

A

B

C

D

Solution
Question 10
4 / -1

A dice is thrown two times. If getting the odd number is considered as success, then the probability of two successes is

A

B

C

D

Solution