The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
The paint recipe also calls for 1/4 cup of food coloring. tyler says mrs. mcglashan will also need 6 cups of food coloring. do u agree or disagree? explain.