Q The time in minutes for 20 sportsmen to complete a running test are recorded in the table.
i) construct a stem and leaf diagram with split stems.
ii) what were the fastest and lowest time taken
iii) find the percentage of sportsmen who took at least 18.5 minutes to complete the test
iv) A sportsman is selected random. find the probability that the sportsman failed the test if the passing time is 18.4 minutes.
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