Question

calculate the mean and median of the multiples of 3 between 20 and 50​

Answer 1

The no.s are(multiples of 3 between 20 and 50) : -

{21,24,27,30,33,36,39,42,45,48}

N=10

Median =1/2(n/2+ (n/2 +1))th term

=1/2(5th term +6 th term)

=1/2(33+36) =1/2(69)

Median =34.5

Mean = sum of all the no.s/N

(21+24+27+30+33+36+39+42+45+48)/10

=345/10

Mean =34.5

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