16 Ayesha selects a sample of six children from a primary school and measures their heights in centimetres. She finds that five of the children are taller than the national average for their age. a Comment whether cach of the following could be a sensible conclusion for Ayesha to draw: i The children at this school are taller than average. ii The sampling methods must have been biased. iii This just happens to be an unusual sample. b If instead, Ayesha took a sample of 60 children and found that 50 were taller than the national average, how would your answer to a change? c In a larger sample, Ayesha identified two values as outliers: -32 cm and 155 cm. For each of the values, comment whether it should be kept or discarded from further analysis. o admit-for