Question

CHAPTER-DATA HANDLING
SECTION A (1 MARK)
1. The mean of first five odd numbers is
2. Find the range of 6,3,5,7,2,4,9,8
3. The is the value which is strictly in the middle of the list of the observations when written in ascending or descending order.
4. If the mean of 9, 2, x and 12 is 10, the value of x is
5. The mode of 1,2,4,2,3,5,4,2,6,3 is​

Answer 1

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Check whether the mean and median of first five odd numbers are equal? or not?

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Solution

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First five odd numbers are :1,3,5,7,9.

Mean =

no. of terms

sum of the terms

Mean =

5

1+3+5+7+9

=

5

25

=5

median =(

2

n+1

)

th

term where n= no. of terms.

Median =(

2

5+1

)

th

term=3rdterm

∴median=5

∴mean=median=5

Answer 2

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