0-4, 15. Here is a frequency table for a distribution: bin frequency 0 - 4 8 5 - 10 12 11 - 15 17 16 - 20 6 a. Estimate the median of this distribution. b. Estimate the mean of this distribution. 16. Acme Tennis Ball Co tests its tennis balls by dropping them from a fixed height onto a concrete surface and seeing how high they bounce. Here are the results from a recent test: height (cm): 23 21 25 14 20 22 22 23 26 25 24 19 a. Find the mean, the median and mode for this distribution by hand calculation showing all your work.. b. Give the 5-number summary. c. given that the standard deviation for this distribution is 3.28: What proportion (%) of the data is within one standard deviation of the mean? 17. For the normal distribution with mean 70 and standard deviation 5, what percent of all observations will fall between 65 and 70? Draw a Bell-curve and illustrate your answer and give the percentage