Solution: We know that n, whole numbers
0 ,1 , 2 ,3, ......................... n
So consider a example : range of first 2 whole number
⇒ 0 , 1 are first two whole numbers . So n doesn't get included in first n whole numbers.
⇒ So first n whole numbers are 0 , 1, 2 , 3 , ................ n-1
⇒ we know that Range = Highest observation - Lower observation
⇒ (n-1 ) - 0 = n-1
The Range of first n whole numbers is ( n -1 )
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