Random people from a population of 200 000 were polled about their favourite colour. The results are shown in the table. Colour Frequency Blue 46% Green 14% Purple 12% Red 8% Black 7% Other 13% The current survey results are taken from a survey of 467 randomly selected people aged 18 and older. These results are accurate to within +/- 3.9 percentage points, in 95 out of 100 samples. The confidence interval for the number of people whose favourite colour is blue is