Refer to the cumulative frequency distribution in Table 2.

Refer to the cumulative abundance classification in Table 2.9.(a) Construct the percentage ogive for these axioms.(b) At what percentile purpose is an constellation period of 15 minutes?(c) What is the constellation period at the 20th percentile of the classification?Table 2.9 Cumulative Abundance Classification for the Constellation TimesTime, minfcfCum. pct.8.5–10.54413.310.5–12.58124012.5–14.582066.714.5–16.57279016.5–18.5330100