Mini 12 oz - $1.20 Family 28 oz - $2.24
Economy 40 oz - $3.60
Dish detergent is sold in three different sizes. To save money you want to buy the size that gives you the best deal. Determine which of the sizes has the best unit cost.
A) All three sizes offer the same unit cost.
B) The mini size of dish detergent is the best buy.
C) The family size of dish detergent is the best buy.
D) The economy size of dish detergent is the best buy.

The accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors. does it appear plausible that the tension distribution is normal? the given probability is has a significant downward curve, so it is plausible that the tension distribution is normal. the given probability is has a significant downward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is plausible that the tension distribution is normal. the given probability is has a significant upward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is not plausible that the tension distribution is normal.