EduSahara™ Assignment
Name : Arithmetic Mean
Chapter : Data Handling
Grade : CBSE Grade VII
License : Non Commercial Use
Question 1
1.
    • The scores obtained by 8 students in a test are given below. Find the mean score.
      • 3
      • 12
      • 14
      • 10
      • 2
      • 17
      • 7
      • 3
  • (i)
    15
  • (ii)
    3
  • (iii)
    8
    1

    2
  • (iv)
    2
  • (v)
    17
Question 2
2.
    • Rainfall of 11 days (in mm) are given below. Find the mean rainfall.
      • 15
      • 6
      • 15
      • 7
      • 9
      • 13
      • 12
      • 6
      • 12
      • 15
      • 13
  • (i)
    123

    11
    mm
  • (ii)
    145

    11
    mm
  • (iii)
    134

    11
    mm
  • (iv)
    124

    11
    mm
  • (v)
    125

    11
    mm
Question 3
3.
    • Scores of 15 students are given below. Find the mean score.
      • 71
      • 85
      • 75
      • 74
      • 72
      • 83
      • 89
      • 90
      • 85
      • 81
      • 72
      • 82
      • 73
      • 79
      • 75
  • (i)
    1201

    15
  • (ii)
    1187

    15
  • (iii)
    396

    5
  • (iv)
    1216

    15
  • (v)
    1186

    15
Question 4
4.
    • Temperatures of 11 days (in °C) are given below. Find the mean temperature.
      • 31
      • 29
      • 30
      • 32
      • 30
      • 35
      • 31
      • 30
      • 29
      • 26
      • 29
  • (i)
    332

    11
    °C
  • (ii)
    334

    11
    °C
  • (iii)
    343

    11
    °C
  • (iv)
    333

    11
    °C
  • (v)
    354

    11
    °C
Question 5
5.
    • Weights of 10 students (in kg) are given below. Find the mean weight.
      • 45
      • 60
      • 44
      • 53
      • 57
      • 45
      • 58
      • 40
      • 59
      • 45
  • (i)
    253

    5
    kg
  • (ii)
    254

    5
    kg
  • (iii)
    258

    5
    kg
  • (iv)
    263

    5
    kg
  • (v)
    51
    kg
Question 6
6.
    • Daily wages of 15 labourers (in ₹) are given below. Find the mean wage.
      • 465
      • 376
      • 455
      • 422
      • 348
      • 399
      • 381
      • 431
      • 425
      • 341
      • 411
      • 390
      • 310
      • 303
      • 366
  • (i)
    389.20
  • (ii)
    388.20
  • (iii)
    390.20
  • (iv)
    388.40
  • (v)
    388.60
Question 7
7.
Find the mean of all prime numbers between 40 and 80.
  • (i)
    179

    3
  • (ii)
    297

    5
  • (iii)
    59
  • (iv)
    415

    7
  • (v)
    299

    5
Question 8
8.
Find the mean of all prime numbers between 40 and 70.
  • (i)
    51
  • (ii)
    54
  • (iii)
    52
  • (iv)
    55
  • (v)
    53
Question 9
9.
Find the mean of first 7 multiples of 18.
  • (i)
    74
  • (ii)
    71
  • (iii)
    72
  • (iv)
    70
  • (v)
    73
Question 10
10.
Find the mean of first 7 whole numbers.
  • (i)
    1
  • (ii)
    3
  • (iii)
    4
  • (iv)
    2
  • (v)
    6
Question 11
11.
Find the mean of first 9 multiples of 16.
  • (i)
    80
  • (ii)
    78
  • (iii)
    79
  • (iv)
    81
  • (v)
    82
Question 12
12.
Find the mean of the first 10 odd numbers.
  • (i)
    12
  • (ii)
    10
  • (iii)
    9
  • (iv)
    7
  • (v)
    11
Question 13
13.
Find the mean of the first 10 even numbers.
  • (i)
    12
  • (ii)
    13
  • (iii)
    9
  • (iv)
    10
  • (v)
    11
Question 14
14.
    • The marks obtained by 14 students in a test are given below. Find their mean marks.
      • 18
      • 47
      • 31
      • 6
      • 15
      • 36
      • 29
      • 16
      • 29
      • 26
      • 29
      • 37
      • 31
      • 6
  • (i)
    128

    5
  • (ii)
    176

    7
  • (iii)
    180

    7
  • (iv)
    178

    7
  • (v)
    76

    3
Question 15
15.
    • Heights of 12 students (in cm) are given below. Find the mean height.
      • 138
      • 165
      • 140
      • 134
      • 132
      • 131
      • 126
      • 158
      • 164
      • 131
      • 169
      • 173
  • (i)
    147
    cm
  • (ii)
    587

    4
    cm
  • (iii)
    595

    4
    cm
  • (iv)
    589

    4
    cm
  • (v)
    591

    4
    cm
Question 16
16.
    • Heights of 10 plants (in cm) are given below. Find the mean height.
      • 94
      • 62
      • 67
      • 87
      • 97
      • 81
      • 96
      • 55
      • 75
      • 69
  • (i)
    157

    2
    cm
  • (ii)
    392

    5
    cm
  • (iii)
    803

    10
    cm
  • (iv)
    793

    10
    cm
  • (v)
    783

    10
    cm
Question 17
17.
    • Ages of 14 students (in years) are given below. Find the mean age.
      • 11
      • 14
      • 13
      • 14
      • 13
      • 10
      • 10
      • 10
      • 11
      • 13
      • 13
      • 12
      • 13
      • 14
  • (i)
    199

    14
    years
  • (ii)
    86

    7
    years
  • (iii)
    171

    14
    years
  • (iv)
    173

    14
    years
  • (v)
    185

    14
    years
    Assignment Key

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