The head of maintenance at xyz rent-a-car believes that the mean number of miles between services is 21352135 miles, with a variance of 145,924145,924. if he is correct, what is the probability that the mean of a sample of 4040 cars would differ from the population mean by less than 2929 miles? round your answer to four decimal places.

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

W-16=-12 solve each one step equation plz