Answer to Question #198322 in Statistics and Probability for Lesedi

Question

For the periods 2014 to 2019, ESKOM’s electricity percentage price adjustments are given in the 

following table: 

2014/15 2015/16 2016/17 2017/18 2018/19

7.05% 31.70% 8.18% 1.62% 2.82%

Table 1: Average percentage price adjustments 

a) Find the Average (arithmetic mean) percentage price adjustment from 

2014 to 2019 (5

Answer 1

$Average = \frac{7.05 \; \% +31.70\; \% +8.18\; \% +1.62\; \% +2.82\;\%}{5}= 10.274\; \%$