Home
Class 11
MATHS
An experiment consists of recording boy-...

An experiment consists of recording boy-girl composition of families with 2 childern.
(i) What is the sample space if we are interested in knowing whether it is a boy or girl in the order of their births?
(ii) What is the sample space if we are interested in the number of girls in the family?

Text Solution

Verified by Experts

The correct Answer is:
(i){BB, BG, GB, GG} (ii) {0, 1, 2}
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NCERT TELUGU|Exercise EXERCISE 16.2|7 Videos
  • PROBABILITY

    NCERT TELUGU|Exercise EXERCISE 16.3|21 Videos
  • PROBABILITY

    NCERT TELUGU|Exercise MISCELLANEOUS EXERCISEON CHAPTER 25|1 Videos
  • PRINCIPLE OF MATHEMATICAL INDUCTION

    NCERT TELUGU|Exercise EXERCISE - 4.1|13 Videos
  • RELATIONS AND FUNCTIONS

    NCERT TELUGU|Exercise Miscellaneous Exercise on Chapter 2|12 Videos

Similar Questions

Explore conceptually related problems

Assuming that each child is as likely to be a boy as it is to be a girl, what is the conditional probability that in a family of two children both are boys, given that the older child is a boy.

Assume that each born child is equally likely to be a boy or a girl. If a family has two children, what is the conditional probability that both are girls given that  (i) the youngest is a girl, (ii) at least one is a girl?

Suppose there are 12 boys and 4 girls in a class. If we choose three children one after another in succession, what is the probability that all the three are boys ?

(i) A shop-keeper buys a particular type of electric bulbs from three manfacturers M_(1) , M_(2) and M_(3) . He buys 25% of his requirement from M_(1) , 45% from M_(2) and 30% from M_(3) . Based on the past experience, he found that 2% of type M_(3) bulbs are defective, where as only 1% of type M_(1) and Type M_(2) are defective . If a bulb chosen by him at random is found defective find the probability that it was of type M_(3) . (ii) In a certain college, 25% of the boys and 10% of the girls are studying mathematics. The girls constitute 60% of the student strength . If a student is selected at random is found studying mathematics, find the probability that the student is a girl.