EduSahara™ Assignment
Name : Arithmetic Mean
Chapter : Data Handling
Grade : CBSE Grade VII
License : Non Commercial Use
Question 1
1.
    • The scores obtained by 6 students in a test are given below. Find the mean score.
      • 8
      • 9
      • 15
      • 4
      • 16
      • 14
  • (i)
    11
    1

    2
  • (ii)
    16
  • (iii)
    12
  • (iv)
    11
  • (v)
    4
Question 2
2.
    • Rainfall of 14 days (in mm) are given below. Find the mean rainfall.
      • 5
      • 8
      • 9
      • 11
      • 10
      • 7
      • 13
      • 13
      • 9
      • 7
      • 7
      • 14
      • 15
      • 8
  • (i)
    75

    7
    mm
  • (ii)
    68

    7
    mm
  • (iii)
    10
    mm
  • (iv)
    82

    7
    mm
  • (v)
    69

    7
    mm
Question 3
3.
    • Scores of 12 students are given below. Find the mean score.
      • 87
      • 88
      • 88
      • 75
      • 86
      • 74
      • 79
      • 79
      • 76
      • 90
      • 83
      • 85
  • (i)
    83
  • (ii)
    169

    2
  • (iii)
    167

    2
  • (iv)
    165

    2
Question 4
4.
    • Temperatures of 14 days (in °C) are given below. Find the mean temperature.
      • 26
      • 35
      • 28
      • 29
      • 32
      • 30
      • 25
      • 29
      • 30
      • 30
      • 32
      • 32
      • 25
      • 31
  • (i)
    221

    7
    °C
  • (ii)
    214

    7
    °C
  • (iii)
    207

    7
    °C
  • (iv)
    208

    7
    °C
  • (v)
    209

    7
    °C
Question 5
5.
    • Weights of 14 students (in kg) are given below. Find the mean weight.
      • 49
      • 54
      • 50
      • 48
      • 60
      • 42
      • 44
      • 56
      • 59
      • 51
      • 40
      • 44
      • 45
      • 42
  • (i)
    356

    7
    kg
  • (ii)
    349

    7
    kg
  • (iii)
    344

    7
    kg
  • (iv)
    49
    kg
  • (v)
    342

    7
    kg
Question 6
6.
    • Daily wages of 15 labourers (in ₹) are given below. Find the mean wage.
      • 310
      • 421
      • 467
      • 435
      • 394
      • 336
      • 378
      • 435
      • 455
      • 330
      • 387
      • 393
      • 417
      • 361
      • 465
  • (i)
    400.93
  • (ii)
    399.93
  • (iii)
    399.00
  • (iv)
    399.07
  • (v)
    398.93
Question 7
7.
Find the mean of all prime numbers between 20 and 100.
  • (i)
    985

    17
  • (ii)
    981

    17
  • (iii)
    1097

    19
  • (iv)
    983

    17
  • (v)
    869

    15
Question 8
8.
Find the mean of all prime numbers between 30 and 80.
  • (i)
    329

    6
  • (ii)
    441

    8
  • (iii)
    221

    4
  • (iv)
    331

    6
  • (v)
    111

    2
Question 9
9.
Find the mean of first 8 multiples of 20.
  • (i)
    89
  • (ii)
    93
  • (iii)
    91
  • (iv)
    87
  • (v)
    90
Question 10
10.
Find the mean of first 10 whole numbers.
  • (i)
    11

    2
  • (ii)
    5
  • (iii)
    17

    4
  • (iv)
    9

    2
  • (v)
    7

    2
Question 11
11.
Find the mean of first 5 multiples of 11.
  • (i)
    32
  • (ii)
    33
  • (iii)
    30
  • (iv)
    35
  • (v)
    34
Question 12
12.
Find the mean of the first 15 odd numbers.
  • (i)
    16
  • (ii)
    13
  • (iii)
    17
  • (iv)
    15
  • (v)
    14
Question 13
13.
Find the mean of the first 15 even numbers.
  • (i)
    15
  • (ii)
    16
  • (iii)
    17
  • (iv)
    14
  • (v)
    19
Question 14
14.
    • The marks obtained by 12 students in a test are given below. Find their mean marks.
      • 12
      • 23
      • 4
      • 46
      • 2
      • 18
      • 41
      • 41
      • 7
      • 29
      • 38
      • 34
  • (i)
    295

    12
  • (ii)
    293

    12
  • (iii)
    99

    4
  • (iv)
    49

    2
  • (v)
    247

    10
Question 15
15.
    • Heights of 11 students (in cm) are given below. Find the mean height.
      • 174
      • 143
      • 134
      • 168
      • 175
      • 145
      • 133
      • 150
      • 148
      • 154
      • 152
  • (i)
    1676

    11
    cm
  • (ii)
    1687

    11
    cm
  • (iii)
    1678

    11
    cm
  • (iv)
    1677

    11
    cm
  • (v)
    1698

    11
    cm
Question 16
16.
    • Heights of 14 plants (in cm) are given below. Find the mean height.
      • 89
      • 85
      • 89
      • 92
      • 90
      • 86
      • 93
      • 87
      • 93
      • 61
      • 60
      • 57
      • 94
      • 98
  • (i)
    601

    7
    cm
  • (ii)
    84
    cm
  • (iii)
    594

    7
    cm
  • (iv)
    589

    7
    cm
  • (v)
    587

    7
    cm
Question 17
17.
    • Ages of 14 students (in years) are given below. Find the mean age.
      • 14
      • 13
      • 11
      • 10
      • 15
      • 11
      • 13
      • 13
      • 11
      • 14
      • 12
      • 10
      • 10
      • 13
  • (i)
    99

    7
    years
  • (ii)
    92

    7
    years
  • (iii)
    87

    7
    years
  • (iv)
    86

    7
    years
  • (v)
    85

    7
    years
    Assignment Key

  •  1) (iv)
  •  2) (ii)
  •  3) (iv)
  •  4) (iii)
  •  5) (v)
  •  6) (v)
  •  7) (iv)
  •  8) (iv)
  •  9) (v)
  •  10) (iv)
  •  11) (ii)
  •  12) (iv)
  •  13) (ii)
  •  14) (i)
  •  15) (i)
  •  16) (v)
  •  17) (v)