Number of units manufactured (M) and number of units sold (S) (in hundred) by a company over the years.
| Year | M | S |
| 2011 | 2.6 | 1.7 |
| 2012 | 2.2 | 1.5 |
| 2013 | 2.1 | 1.0 |
| 2014 | 2.8 | 1.4 |
| 2015 | 2.6 | 2.1 |
What is the average number of units sold by the company per year?
Answer & explanation
Correct answer: option 3
Average number of unites sold per year = \(\frac{1.7 + 1.5 + 1.0 + 1.4 + 2.1 }{5}\)
= \(\frac{7.7}{5}\)
= 1.54
= 154 ( in hundreds )