General Mathematics Paper 2, WASSCE (PC 2ND), 2020

Question 10

  1. The ages of 14 children at a party are given as follows: 12, 6, 5, 4, 8, 13, 11, 2, 5, 7, 1, 9, 10 and 3. Calculate the:

(i) range;
(ii) semi- interquartile range;
(iii) mean.

 

  1. Calculate, correct to three significant figures, the standard deviation.

 

 

Observation