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.)

sample mean = x

x = cars

x = 6.75 cars

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 65

14 people generally sell 5 cars

19 generally sell 6 cars

12 generally sell 7 cars

9 generally sell 8 cars

11 generally sell 9 cars

We have to calculate the sample mean.

Formula:

Thus, the weighted sample mean is 6.75 cars.

graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

step-by-step explanation: