The U.S. Department of Health records suicide rates by age grouping. The tables below s...

The U.S. Department of Health records suicide rates by age grouping. The tables below show the rates for 2000 and 2006. The rate is the number of suicides per 100,000 population.

Represent this information with a matrix for each year.

(a) Use a matrix operation to obtain the matrix showing the change from 2000 to 2006.

(b) Which groups, if any, show an increase in rate?

(c) Which groups, if any, show a decrease in rate?