Explanation:
7.5
Factors of 2 are 1, 2, 3, 4, 6, 8, 12, 24
The observations are 1, 2, 3, 4, 6, 8, 12, 24
\(\therefore\) Number of observations = 8 Arithmetic mean \( = \frac{\text{Sum of observations}}{\text{Number of observations}}\)
\(\therefore\) Arithmetic mean\( = \frac{1 + 2 + 3 + 4 + 6 + 8 + 12 + 24}{8}\)
\(\therefore\) Arithmetic mean\( = \frac{60}{8}\)
\(\therefore\) Arithmetic mean =7.5