Polyetheretherketone (PEEK)TM polymers are resistant to both organic and aqueous environments; they are used in bearings, piston parts, and pumps. Several tests were conducted to determine the ultimate tensile strengths in units of megapascals [MPa]. The following CDF shows results from 320 points.
a. What is the frequency value of A on the chart?
b. What is the frequency value of B on the chart?
c. What is the frequency value of C on the chart?
d. What is the frequency value of D on the chart?
e. What is the frequency value of E on the chart?
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