To select an athletics team, 100 students were each timed over 1 500 metres. The data obtained is given in Table 11.10. time (min:sec) 4:00 4:30 5:00 5:30 6:00 number inside this time 7 28 65 88 100 Table 11,10 a A student is chosen at random. What is the probability that the student's time was inside 5 min? b A student is chosen at random from those whose time was inside 5 min 30s. Find the probability that this student took less than 4 min 30 s. • Two students are chosen at random. Find the probability that both took 5 min 30s or more.?
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Asked by Khadijah on 9th May, 2024
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