Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
The times in minutes taken by seven students to become proficient at a new computer game were recorded. The results are given below: $15, 10, 48, 10, 19, 14, 16$.
(i)[2]
Find the mean and standard deviation for these times.
(ii)[1]
State which of the mean, median or mode you think is the most suitable measure of central tendency for representing the data in this case.
(iii)[2]
For each of the two measures of average you did not choose in part (ii), state a reason why you consider it inappropriate.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme.