Statistics English Medium Free Online Test 1 Mark Questions 2020-2021

9th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. The median of the first 10 whole numbers is

    (a)

    4

    (b)

    4.5

    (c)

    5

    (d)

    5.5

  2. Find the mean of the prime factors of 165.

    (a)

    5

    (b)

    11

    (c)

    13

    (d)

    55

  3. Data available in an unorganized form is called__________data

    (a)

    Grouped data

    (b)

    class interval

    (c)

    mode

    (d)

    raw data

  4. Which one of the following is not a measure of central tendency?

    (a)

    Mean

    (b)

    Range

    (c)

    Median

    (d)

    Mode

  5. A particular observation which occurs maximum number of times in a given data is called is

    (a)

    Frequency

    (b)

    range

    (c)

    mode

    (d)

    median

  6. The algebraic sum of the deviations of a set of n values from their mean is

    (a)

    0

    (b)

    n-1

    (c)

    n

    (d)

    n+1

  7. If the mean of five observations x,x+2,x+4,x+6,x+8, is 11, then the mean of first three observations is 

    (a)

    9

    (b)

    11

    (c)

    13

    (d)

    15

  8. The mean of the square of first 11 natural number is

    (a)

    26

    (b)

    46

    (c)

    48

    (d)

    52

  9. The mean of the first 10 whole number is

    (a)

    4

    (b)

    4.5

    (c)

    5

    (d)

    5.5

  10. Find the mean of the prime factors of 165

    (a)

    5

    (b)

    11

    (c)

    13

    (d)

    55

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