Question

What is the average of 1upon8, 3upon8, 5upon8 and7upon8

Answer 1

$total \: = \frac{1}{8} + \frac{3}{8} + \frac{5}{8} + \frac{7}{8} \\ = \frac{1 + 3 + 5 + 7}{8} = \frac{16}{8} = 2 \\ \\ total \: number \: of \: observations \: = 4 \\ \\ mean \: = \frac{2}{4} = \frac{1}{2}$