3. The following Table 3 gives the frequency distribution of times (to the nearest hour) that 90 fans spent waiting in line to buy tickets to a rock concert. Waiting time (hours) 0-6 Frequency...

how to answer 3(iii)

Extracted text: 3. The following Table 3 gives the frequency distribution of times (to the nearest hour) that 90 fans spent waiting in line to buy tickets to a rock concert. Waiting time (hours) 0-6 Frequency Ситulative Relative Midpoints frequency frequency 7- 13 27 14 – 20 30 21 – 27 20 28 – 34 8 Table 3 (i) Construct and complete Table 3 with cumulative frequency, relative frequency and midpoints. (ii) Calculate the class size of the above data. (ii) Describe the inferential statistics. Hence, explain the conclusion or decision can be made from the above data.