Correct Answer - Option 2 : 65
Given:
Sale by company
In 2011 = 67, in 2012 = 85, in 2013 = 92, in 2014 = 45, in 2015 = 36
Formula:
Average = Sum of data/number of data
Calculations:
Total sale of company B = 67 + 85 + 92 + 45 + 36 = 325
Required average = 325/5 = 65
∴ Required average is 65