The average American family of four spends $5,000 per year on food prepared at home. Assuming a normal distribution with a standard deviation of $1,000 and a randomly selected American family of four,...

The average American family of four spends $5,000 per year on food prepared at home. Assuming a normal distribution with a standard deviation of $1,000 and a randomly selected American family of four, we could determine that about 95.5% of the family’s annual spending for food prepared at home