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5)Each of the 70 trainees at a secretarial college was asked to type a copy of a particular document. The times taken are shown, correct to the nearest 0.1 minutes, in the following table.
a Explain why the interval for the first class has a width of 0.3 minutes.
b Represent the times taken in a histogram.
c Estimate, to the nearest second, the upper boundary of the times taken by the fastest 10 typists.
d It is given that 15 trainees took between 3.15 and b minutes. Calculate an estimate for the value of b when:
i b>3.15 ii b<3.15.

Please helpp 5Each of the 70 trainees at a secretarial college was asked to type a copy of a particular document The times taken are shown correct to the neare class=


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