Question

An experiment is performed 400 times,and there are three possible events A,B and C .Possible occurrence of the three events are recorded.Out of the following which records are possible give reason to support your answer.
A) A- 176,B-54, C-170
B)A-200,B-100,C-75
C)A-180 ,B-170 ,C-50
D)A-@75 ,B-125 ,C-200

Answer 1

D) one is correct because only it has the correct sum of total number of outcomes.

HOPE IT WILL HELP YOU. . . . . . . . .

Answer 2

Solution:-

Out of the above four options, A, C and D are possible.
Option B is not possible because the sum total of the given three events is not 400. It is (200 + 100 + 75) = 375 only. So it is not possible.

Now, all, the other three options i.e. A, C and D are possible because the sum total of given three events in these three options is exactly 400.
Option A : 176 + 54 + 170 = 400
Option C : 180 + 170 + 50 = 400
Option D : 75 + 125 + 200 = 400

Answer