Welcome to your Class 10 Maths MCQs for Statistics

1.
Statistics

The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency of a grouped data gives its:

2.
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The mode and mean is given by 7 and 8, respectively. Then the median is:

3.
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If the arithmetic mean of x, x + 3, x + 6, x + 9 and x + 12 is 10, then x = ?

4.
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The mean of the data: 4, 10, 5, 9, 12 is;

5.
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While computing mean of the grouped data, we assume that the frequencies are:

6.
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If the mean of first n natural numbers is 5n/9, then n =?

7.
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If x1, x2, x3,….., xn are the observations of a given data. Then the mean of the observations will be:

8.
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If the mean of frequency distribution is 7.5 and ∑fi xi = 120 + 3k, ∑fi = 30, then k is equal to:

9.
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The median of the data 13, 15, 16, 17, 19, 20 is:

10.
Statistics

If the mean of first n natural numbers is 3n/5, then the value of n is

11.
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If AM of a, a+3, a+6, a+9 and a+12 is 10, then a is equal to;

12.
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The Median when it is given that mode and mean are 8 and 9 respectively, is:

13.
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The class interval of a given observation is 10 to 15, then the classmark for this interval will be:

14.
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If 35 is removed from the data, 30, 34, 35, 36, 37, 38, 39, 40 then the median increases by:

15.
Statistics

If the sum of frequencies is 24, then the value of x in the observation: x, 5,6,1,2, will be;