Practice Test | Kullabs.com
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  • Find the mean of:

    10, 18, 12, 30, 22, 14, 13

     

    20
    18
    17
    2
  • Find the arthmetic mean of the following data:

    46, 24, 12, 25, 33

     33
     28
     30
     25
  • Find the mean of the following data:

     15cm, 55cm, 32cm, 28cm, 40cm, 49cm.

     30cm
     36.5cm
     33cm
     35cm
  • The mean of 8, 7, 9, 10, 12, a and 14 is 12, find the value of a.

    25
    26
    24
    28
  • Find the mean of the following data.6, 12, 9, 3, 22, 21

    12.17
    15
    11
    12
  • The mean of 3, x+2, 8, 12, 2x-1 and 6 is 7, find the value ofa.

    5
    6
    7
    4
  • The arthematic mean of four numbers is 42. If three of the numbers are 34, 38 and 46, find the fourth number.

    45
    48
    55
    50
  • The arthematic mean of five numbers is 50. If three of the numbers are 40, 45 and 75, find the mean of fourth and fifth numbers.

    55
    58
    45
    48
  • The mean of 3, a+2, 8, 12, 2a - 1 and 6 is 7, find the value of a.

    7
    5
    4
    3
  • The arthematic mean of 3 numbers is 60. If two of the numbers are 50 and 60, what is the third number?

    70
    55
    75
    87
  • Find the mean from the following data. 4, 12, 13, 21, 12, 12, 10

    17
    12
    10
    15
  • Find the mean from th efollowing data. 15, 13, 18, 16, 14, 17, 12

    15
    22
    17
    12
  • Find the mean. 45, 35, 37, 32, 47, 38, 39, 36, 34, 37

    45
    39
    36
    38
  •  Find the mean of the following data.

      x  5  10  15  20  25  30
      f  6  3  6  7  4  4

     

     15
     12
     17
     18
  •  Find the mean of the following data.

      x   2   4   6   8   10   12
      f   12   8   9   10   6   5

     

     5.5
     7
     6.5
     6.2
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