Acupcake recipe has instrucions to use 1/5 cup of flour for each serving. cam used 2 cups of flour. how many servings did he make

If a cupcake recipe has instructions to use 1/5 cup of flour for each serving. But if he used 2 cups of flour he made 10 servings

“For each histogram bar, we start by multiplying the central x-value to the corresponding bar height. Each of these products corresponds to the sum of all values falling within each bar. Summing all products gives us the total sum of all values, and dividing it by the number of observations yields the mean.” found this on google, hope it helps