Practicing Success
Practicing Success
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The following table shows the sales of an electronic chip over 5 years:
Find the year in which the sales are equal to the average of the sales over the 5 years. |
2010 2011 2012 2013 |
2012 |
Average sales over five years: ⇒ \(\frac{45 + 54 + 57 + 60 + 69}{5}\) = \(\frac{285}{5}\) = 57 Avg. of sales over 5 years = sales in year 2012 |
