Question

Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell five cars; nineteen generally sell six cars; twelve generally sell seven cars; nine generally sell eight cars; eleven generally sell nine cars. Calculate the following. (Round your answer to two decimal places.)Data Value (# cars) Frequency Relative Frequency Cumulative Relative Frequency

Answer 1

Explanation:

From the information given:

We can compute the required calculations into a table as shown below.

`\mathbf{Data \ value }`
`\mathbf{ Frequency }`
`\mathbf{Relative \ frequency}`
`\mathbf{Cumulative \ relative }`

`\mathbf{Frequency}`

5 14 14/65 = 0.22 14

6 19 19/65 = 0.29 19+14 = 33

7 12 12/65 = 0.19 33+12 = 45

8 9 9/65 = 0.14 45 + 9 = 54

9 11 11/65 = 0.17 54 + 11 = 65

65

Note: that the relative frequency is determined by dividing each value in the frequency by the total of the frequency.