Exercise 6B For questions 1 and 2, use the method demonstrated in Worked Example 6.5 to complete the grouped frequenc- summarizing the data in each question. State also the total number of observations. 1 The times taken by members of an athletics team running a sprint race are given below, to the nearest se Time / (sec) Frequency a 15 2 Copy and complete each table. Time / (sec) Frequency 16 1 17 7 14.5 < 16.5 18 5 19 نیا 3 20 0 21 1 Remerquarte 18.5<20.5 22 0 23 1

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