STATISTICS Test

STATISTICS

This is STATISTICS Test-05 for CBSE class 10 Maths.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Median of a data is given by
  • A
    \(l + \left( {\frac{{\frac{n}{2} - f}}{{cf}}} \right) \times h\)
  • B
    \(l + \left( {\frac{{\frac{n}{2} - cf}}{f}} \right) \times h\)
    Correct
  • C
    \(l + \left( {\frac{{\frac{n}{2} - cf}}{f}} \right) \div h\)
  • D
    \(l - \left( {\frac{{\frac{n}{2} - cf}}{f}} \right) \times h\)
2
In the following distribution Wages(in Rs) No of workers More than 140 12 More than 130 27 More than 120 60 More than 110 105 More than 100 124 More than 90 141 More than 80 150 The number of workers having wage range (in Rs) 110 – 120 is
  • A
    55
  • B
    50
  • C
    45
    Correct
  • D
    40
3
The abscissa of the point of intersection of the less than type and of the more than type ogives of a grouped data gives its
  • A
    mean
  • B
    median
    Correct
  • C
    mode
  • D
    all the three
4
An ‘ogive’ is used to determine
  • A
    mode
  • B
    median
    Correct
  • C
    mean
  • D
    none of these
5
To represent ‘the less than type’ graphically, we plot the ____________ on the x – axis.
  • A
    lower limits
  • B
    upper limits
    Correct
  • C
    class marks
  • D
    class size
6
To represent ‘the more than type’ graphically, we plot the ____________ on the x – axis.
  • A
    lower limits
    Correct
  • B
    class size
  • C
    upper limits
  • D
    class marks
7
If the less than ogive and the more than ogive intersect at (32, 48), then the median of the data is
  • A
    32
    Correct
  • B
    80
  • C
    16
  • D
    48
8
Which of the following is not a measure of central tendency?
  • A
    standard deviation
    Correct
  • B
    mode
  • C
    median
  • D
    arithmetic mean
9
The empirical relationship between the three measures of central tendencies is
  • A
    3 median = mode + 2 mean
    Correct
  • B
    3 mean = median + 2 mode
  • C
    3 mode = mean + 2 median
  • D
    none of these
10
Mean – Mode =
  • A
    3(Mean – Mode)
  • B
    3(Mode – Mean)
  • C
    3(Mean – Median)
    Correct
  • D
    3(Median – Mean)
11
\(Mode + \frac{2}{3}\left( {Mean - Mode} \right)\)=
  • A
    Median
    Correct
  • B
    none of these
  • C
    Mean
  • D
    Mode
12
Which of the following is not a measure of central tendency?
  • A
    mode
  • B
    median
  • C
    variance
    Correct
  • D
    arithmetic mean
13
\(Mode + \frac{3}{2}\left( {Median - Mode} \right)\)=
  • A
    Median
  • B
    none of these
  • C
    Mean
    Correct
  • D
    Mode
14
The median and mode of a distribution are 20 and 18, then the mean is
  • A
    20
  • B
    18
  • C
    22
  • D
    21
    Correct
15
If the mode of the data is 45 and the median is 33, then the mean is
  • A
    none of these
  • B
    27
    Correct
  • C
    33
  • D
    30