CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A pair has two children. If one of them is boy, then the probability that other is also a boy is


A

12

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

14

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

13

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

None of these.

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

The correct option is C

13


Explanation for correct option:

Finding probability that other child is boy.

A pair has two child and one is boy

Cases:[(Boy, Boy),(Boy, Girl),(Girl, Boy)]=3.

Therefore, if one child is a boy then the no. of favorable cases where the other child will be also a boy: [(Boy, Boy)] =1.

Therefore, the probability that the other one is also a boy is

=No.offavourablecaseTotalno.ofcases=13

Hence, Option(C) is the correct answer.


flag
Suggest Corrections
thumbs-up
9
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Conditional Probability
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon