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Each day, a scientist takes 500 samples of air
in a city and tests them for harmful levels of
pollution. The table below shows the relative
frequencies of samples that have harmful
levels of pollution on each day.
Work out the range, across the five days, of
the number of samples each day with harmful
levels of pollution.

Each Day A Scientist Takes 500 Samples Of Air In A City And Tests Them For Harmful Levels Of Pollution The Table Below Shows The Relative Frequencies Of Samples class=

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