## Thinking Mathematically (6th Edition)

a. The green bar in the graph for the word weird looks to be right in the middle between the dotted lines extending from the points $80$ and $90$; therefore we can estimate that $85$ people per $100$ spell weird correctly. b. For the word inoculate, we can see that the blue graph is a little bit to the left from the center between $20$ and $30$, but covers more than a third of the space; therefore we can say that its value is approximately $24$. If $85$ in $100$ spell weird correctly, and $24$ in $100$ spell inoculate correctly, then in $100$ people, there are: $85 – 24 = 61$ more people who spell weird correctly than there are people who spell inoculate correctly. In a group consisting of $8729$, with that ratio, there's going to be: $8729*\frac{61}{100}\approx5325$ more people who spell weird correctly than there are people who spell inoculate correctly.