Q4, The ages in years of a random sample 35 visitors of a historical site. 7 6 20 5 25 30 24 10 12 20 24 48 26 15 13 22 72 60 96 33 84 56 70 40 52 36 28 47 36 32 65 45 38 18 53 a. Prepare an ordered stem and leaf display to sort the data. b. Prepare a frequency distribution with 10 classes and using (0 and less than 10) as the first class. c. From the frequency distribution, insert relative frequency, cumulative frequency and percentage frequency column. d. Construct the histogram, frequency polygon and the ogive e. From the Ogive, estimate the value of the median.

Q5. Consider the frequency distribution of the exam marks of a random sample of 50 students given below. Marks Frequency 50 and less than 60 2 60 and less than 70 5 70 and less than 80 14 80 and less than 90 17 90 and less than 100 12 a. Develop a relative frequency and percentage frequency distribution b. Develop a cumulative frequency distribution and a percentage cumulative frequency distribution. c. Construct a percentage frequency polygon d. Construct a percentage ogive. e. From the percentage ogive, how many percent of the students scored (i) less than 72 marks and (ii) more than 65 marks?