Textbook ExpertVerified Tutor
25 Oct 2021
Given information
It is given that sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week.
people answered that they generally sell cars;
generally sell cars;
generally sell cars;
generally sell cars and
generally sell cars.
Step-by-step explanation
Step 1.
Frequency is the number of times a data point occurs in a data set.
Relative frequency is the ratio of frequency to the total number of data values.
Cumulative relative frequency is sum of the previous relative frequencies.
Let denote the frequency and denote the total number of data values.
Then,
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