Question

what is the MANE of 1²,2²,3²,4²,5²,6²,7²​

Answer 1

Step-by-step explanation:

Mean of any observation is defined as the - Arithmetic sums of events / no. of events

Here -

observations: 1², 2², 3², 4², 5², 6², 7²

Arithmetic sums - 1² + 2² + 3² +4² +5² +6² + 7² = 1 + 4 + 9 + 16 + 25 +36 + 49 = 140

Aslike - Arithmetic sums : no. of

observations

No. of observations = 7

Hence, required mean = 140/7 = 20