MTH202 Quiz No. 3 File 2

Question # 1 of 10 ( Start time: 11:48:29 PM )  Total Marks: 1

There are 5 girls students and 20 boys students in a class. How many students are there in total ?

Select correct option:

 4

 15

 25

 100

Question # 2 of 10 ( Start time: 11:48:54 PM )  Total Marks: 1

The addition law of probability for two disjoint events A and B is -------

Select correct option:

 P(A or B) = P (angel) + P(beer) - P (A and B)

 P(A or B) = P (angel) + P (beer) - P(angel) P(beer)

 P(A or B) = P(angel) + P(beer) + P(angel) P(beer)

 P(A or B) = P(angel) + P(beer)

Question # 3 of 10 ( Start time: 11:49:39 PM )  Total Marks: 1

Let S = {1, 2, 3, 4, 5, 6}, A = {1, 3, 5}, B = {2, 4, 6}, then P(A U B) will be --------

Select correct option:

 0

 1

 1/2

 2/3

Question # 4 of 10 ( Start time: 11:50:51 PM )  Total Marks: 1

How many different signals each consisting of five flags hung in a vertical line, can be formed from three identical red flags and two identical blue flags?

Select correct option:

 10

 20

 40

 120

Question # 5 of 10 ( Start time: 11:53:00 PM )  Total Marks: 1

C(n, k)= k! P(n, k) .

Select correct option:

 True

 False

Question # 6 of 10 ( Start time: 11:53:24 PM )  Total Marks: 1

Let A and B be the mutually exclusive events such that P(angel) = 1/5 and P(beer) = 3/5, then P(A U B) = ?

Select correct option:

 1/5

 2/5

 3/5

 4/5

Question # 7 of 10 ( Start time: 11:53:51 PM )  Total Marks: 1

How many integers from 1 through 1002 are multiples of 4 ?

Select correct option:

 249

 250

 250.5

 251

Question # 8 of 10 ( Start time: 11:54:43 PM )  Total Marks: 1

What is the minimum number of students in a class to be sure that two of them are born in the same month ?

Select correct option:

 11

 12

 13

 14

Question # 9 of 10 ( Start time: 11:55:22 PM )  Total Marks: 1

Which of the followings is the probability of getting a 6 when a dice is tossed ?

Select correct option:

 0

 1/6

 1/3

 1

Question # 10 of 10 ( Start time: 11:55:53 PM )  Total Marks: 1

If A and B be events with P(A)=1/3, P(B)=1/4 and P(A intersection B)=1/6, then P(A U B)= ________ .

Select correct option:

 2/3

 5/12

 1/24

 1/2