MathematicsFollowing data gives the number of children in 40 families: 1, 2, 6, 5, 1, 5, 1, 3, 2, 6, 2, 3, 4, 2, 0, 0, 4,4, 3, 2, 2, 0, 0, 1, 2, 2, 4, 3, 2, 1, 0, 5, 1, 2, 4, 3, 4, 1, 6, 2, 2How many families have 2 children?

Following data gives the number of children in 40 families:


1, 2, 6, 5, 1, 5, 1, 3, 2, 6, 2, 3, 4, 2, 0, 0, 4,4, 3, 2, 2, 0, 0, 1, 2, 2, 4, 3, 2, 1, 0, 5, 1, 2, 4,


3, 4, 1, 6, 2, 2


How many families have 2 children?


  1. A
    9
  2. B
    10
  3. C
    11
  4. D
    12 

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    Solution:

    Given data are,
    1, 2, 6, 5, 1, 5, 1, 3, 2, 6, 2, 3, 4, 2, 0, 0, 4,4, 3, 2, 2, 0, 0, 1, 2, 2, 4, 3, 2, 1, 0, 5, 1, 2, 4, 3, 4, 1, 6, 2, 2
    Frequency distribution table:

    Number of Children

    Number of Families

    0

    5

    1

    7

    2

    12

    3

    5

    4

    6

    5

    3

    6

    3

    Thus, there are 12 families having 2 children.
    Therefore, option 4 is correct.
     
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