a) Calculate an estimate for the mean of the waiting times, by using an appropriate approximation to represent each interval. b) Construct a cumulative frequency table for this data. c) Use the cumulative frequency table to draw a cumulative frequency graph. d) Use the cumulative frequency graph to find estimates for the median and the lower and upper quartiles.

Q: I also Need help with part D please

A: The correlation coefficient is 0.8137.

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A: Given,         ∫2416-25n2dn

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Q: could you provide an example please?

A: Let us take:  u→=0, 0, 0v→=1, 2, 3w→=4, 5, 6