The first six odd numbers ending with 3 are 3, 13, 23, 33, 43, and 53
The sum of the 6 odd numbers = 3 + 13 + 23 + 33 + 43 + 53 = 168
Average = Sum of all termsTotal number of terms
= 1686
= 28
Find the mean of first six odd numbers ending with 1 .