The article Feasting on Protein (AARP Bulletin, September 2009) gave the cost per gram of protein for

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The article “Feasting on Protein” (AARP Bulletin, September 2009) gave the cost per gram of protein for 19 common food sources of protein.

Food Cost

(cents per gram of protein)

Chicken 1.8 Salmon 5.8 Turkey 1.5 Soybeans 3.1 Roast beef 2.7 Cottage cheese 3.1 Ground beef 2.3 Ham 2.1 Lentils 3.3 Beans 2.9 Yogurt 5.0 Milk 2.5 Peas 5.2 Tofu 6.9 Cheddar cheese 3.6 Nuts 5.2 Eggs 5.7 Peanut butter 1.8 Ice cream 5.3

a. Construct a dotplot of the cost-per-gram data.

b. Locate the cost per gram for meat and poultry items in your dotplot and highlight them in a different color. Based on the dotplot, do meat and poultry items appear to be a good value? That is, do they appear to be relatively low cost compared to other sources of protein?

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