A national report shows Michigan's high school graduation rate is improving.
The U.S. Education Department's National Center for Education Statistics report says the state's 2013-14 rate was nearly 79 percent -- up from 77 percent the previous year.
The rate is calculated by using a formula in which the number of graduates in a given year is divided by the number of students who enrolled four years earlier.
The national rate was 82 percent in 2013-14.
Iowa led the way with a 90 percent graduation rate.
The District of Columbia had the lowest, with 61 percent.
In Michigan, Blacks and Hispanics students graduated at a lower rate than the nearly 83 percent by whites.
Blacks graduated at a 64.5 percent rate.
The rate for Hispanic students was nearly 69 percent.
