Discussion

Explanation:

Let us evaluate each of the above statements.

The average tariff in region 4 $=\frac{(415+423+441+451)}{4}=432.5$ p/kwh

region 2 = $\frac{(472+468+478+470)}{4}=472$ p/kwh

region 5 = $\frac{(440+427+439+446)}{4}=438$p/kwh

Hence, the average tariff in region 2 is higher than in region 5. This statement is true. Note that we cannot evaluate the third statement at all.

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