USE THE FOLLOWING DATA AND DIRECTION: The following are the number of birth per

Question

USE THE FOLLOWING DATA AND DIRECTION: The following are the number of birth per year per 1,000 population for 20 countries: 34, 24, 10, 15, 22, 15, 17, 22, 10, 17, 25, 32, 15, 20, 31, 18, 37, 12, 15, 18.

a. The mean birth per year per 1,000 population is? ( A. 22.3, B. 19.5, C. 22.45, D. None of the above)

b. the median birth per year per 1,000 population is? ( A.15, B. 18, C. 22, D. None of the above)

c. the mode birth per year per 1,000 population is? ( A.15, B. 18, C. 22, D. None of the above)

d. the range birth per year per 1,000 population is? ( A.15, B. 18, C. 28, D. None of the above)

Explanation / Answer

Solution:

( a ) Option ( D ) = none of the above

Mean = 409/20 = 20.45

( b ) Option ( B ) =18

Median :

Arranging the values in ascending order :

10   10   12   15   15   15   15   17   17   18   18   20   22   22   24   25   31   32   34   37

mid values are 18 , 18

Median = ( 18 + 18 ) / 2 = 18

( c )Option ( A ) = 15

Arranging the values in ascending order :

10   10   12   15   15   15   15   17   17   18   18   20   22   22   24   25   31   32   34   37

15 occurs most often i.e,. 4 times

Mode = 15

( d ) Option ( d ) = none of the above

Arranging the values in ascending order :

10   10   12   15   15   15   15   17   17   18   18   20   22   22   24   25   31   32   34   37

highest value = 37

least value = 10

Range = 37 - 10 = 27

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