Suppose pages per book in a library have an unknown distribution with mean 297 and standard deviation 25 pages. a sample of size n=75 is randomly taken from the population and the sum of the values is taken. using the central limit theorem for sums, what is the standard deviation for the sample sum distribution?

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x