Use split stems. Calculate both the mean and the median of these 20 Presidents ages. Give the 5 number summary of the ages of the last 20 Presidents. Problem number 1.68 on pages 83 and 84. Packaged foods sold at supermarkets are not always the weight indicated on the package.
Variability always crops up in the manufacturing and packaging process.
Data on the height in inches and shoe size of the members of the mathematics and computer science department at Central are given in the table below. 11.5 Calculate the mean height and mean shoe size. Make a scatterplot using height as X and shoe size as Y. Find the equation of the least-squares regression line for the scatterplot above and give the correlation, r for this plot. Find the least squares regression equation for this plot and the correlation, r. Repeat for a shoe size of 5.