A garden in the shape of a trapezoid has an area of 44.4 square
meters. One base is 4.3 meters and the other base is 10.5 meters
long. The height of the trapezoid is the width of the garden. How wide
is the garden?

Find the solution on the interval [0, 2pi)

Why does the shape of the distribution of the weights of russet potatoes tend to be symmetrical?

Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t.inv.2t to find the value of t for the interval calculation.