U.S. Adults Ages 25 or Older Who Completed High School 100% 92 86 Blacks 83 Whites 80% 68 60%F 49 40% 23 20% 1962 1992 2012 Year Percentage Who Completed High School
60+ Years after “Brown v. Board” In 1954, the Supreme Court ended legal segregation in U.S. public schools. The bar graph shows the percentage of black and white U.S. adults ages 25 or older who completed high school since the end of segregation. The
W(x), who had completed high school x years after 1961. Solve,,
a. Use the appropriate model to determine the percentage of white adults who had completed high school in 2012. Round to the nearest percent. How well does this rounded value model the percents displayed by the graph?
b. Use the appropriate model to determine when 90% of black adults will have completed high school. Round to the nearest year.
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