Answer:
Step-by-step explanation:
a. The frequency and percent frequency of complaints by industry is shown below:
Industry Frequency Percentage Frequency
Bank 26 13%
Cable 44 22%
Car 42 21%
Cell 60 30%
Collection 48 13%
b. Cell has the highest complaints (60).
c. The decreasing order of complaints goes thus: Cell (60%) , Cable (22%), Car(21%).
Both Collection and Bank, together account nearly up to 27% of the total complaints.