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10th CBSE
IMPORTANT
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Important Questions on Statistics

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10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 9
The mean of n observation is X¯. If the first item is increased by 1, second by 2 and so on, then the new mean is
HARD
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 10
One of the methods of determining mode is
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 11

If the mean of the following distribution is 2.6, then the value of y is

Variable x 1 2 3 4 5
Frequency 4 5 y 1 2
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 12
The relationship between mean, median and mode for a moderately skewed distribution is
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10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 13
The mean of a discrete frequency distribution xifi; i=1, 2,……, n is given by
HARD
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 14

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

MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 15
If the median of the data 24, 25, 26, x+2, x+3, 30, 31, 34 is 27.5, then x=
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10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 15 - Statistics>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 16

If the median of the data 6, 7,  x-2, x, 17,20 written in ascending order is 16, then, find the value of x.