Question

1.
Find the mean of
(i) the first eight natural numbers
(ii) the first five prime numbers
(iii) the first six even numbers
(iv) the first five multiple of 3
(v) all the factors of 20​

Answer 1

Answer:

1-4

apply formula n/2+n/2+1/2

Answer 2

Answer:

(i) the mean of first eight natural number = 1+8/2 = 4.5

(ii) the mean of first five prime numbers = 2+11/2 = 6.5

(iii) the mean of first six even numbers = 2+12/2 = 7

(iv) the mean of first five multiple of 3 = 3+15/2 = 9

(v) mean of all the factors of 20​= 1+5/2 = 3

Step-by-step explanation:

formula for calculating =  (a+b)/2 where a is first term and b is last term

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