Question

Find the mean of first 30 natural numbers.

Answer 1

Hi ,

1 , 2 , 3 , ...., 30 are first 30 natural

numbers.

Number of terms = n = 30

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We know that ,

sum of first n natural numbers

= [ n( n + 1 )/2 ]

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Now ,

Mean = ( sum of 30 terms )/30

= [ 30 ( 30 + 1 )/2 ] / 30

= ( 30 + 1 )/2

= 31/2

= 15.5

Therefore ,

Mean of first 30

natural numbers = 15.5

I hope this helps you.

: )

Answer 2

Heya !!!





First 30 natural numbers are 1 , 2 , 3 , 4.......30









Mean = Sum of observation/Number of observation








Mean = 1+2+3+4+.....30/30





Mean = 465/30





Mean = 15.5






★ HOPE IT WILL HELP YOU ★