MathematicsA survey of 400 families of a town was conducted to find out how many children are there in a family. The result of the survey is given below:No. of Families50681827426No. of children01234Find the probability that a family has 3 children.

A survey of 400 families of a town was conducted to find out how many children are there in a family. The result of the survey is given below:


No. of Families

50

68

182

74

26

No. of children

0

1

2

3

4


Find the probability that a family has 3 children.


  1. A
    0.185
  2. B
    0.123
  3. C
    0.167
  4. D
    0.198 

    Fill Out the Form for Expert Academic Guidance!l



    +91



    Live ClassesBooksTest SeriesSelf Learning



    Verify OTP Code (required)

    I agree to the terms and conditions and privacy policy.

    Solution:

    From the given, the total number of outcomes is 400, (i.e.) n(S)=400  . And also, the number of favorable outcomes (i.e.) a family that has 3 children is 74, (i.e.) n(A)=74  .
    Let E be the event that has 3 children in a family, then
    P(E)= n(A) n(S) = 74 100 = 37 200 =0.185  
    Hence, the correct option is 1.
     
    Chat on WhatsApp Call Infinity Learn

      Talk to our academic expert!



      +91


      Live ClassesBooksTest SeriesSelf Learning




      Verify OTP Code (required)

      I agree to the terms and conditions and privacy policy.