wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If A, B, C are three mutually exclusive and exhaustive events of an experiment such that 3P(A) = 2P(B) = P(C), then P(A) is equal to


A

111

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

211

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

511

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

611

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

211


Let 3 P(A) = 2P(B) = P(C) = p. Then,

P(A) = p3, P(B) = p2 and P(C) = p

It is given that A, B, C are three mutually exclusive and exhaustive events.

P(A)+P(B)+P(C)=1

[P(AB)=P(BC)=P(CA)=P(ABC)=0 and P(ABC)=1]

p3+p2+p=1

11p6=1

p=611

P(A)=p3=6113=211

Hence, the correct answer is option (b).


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Events
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon