B) construct 99% confidence interval for the population standard deviation c) Interpret the results

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.