Grade Inflation . The bar graph shows the percentage of UScollege freshmen with an average grade of A in high school. The data displayed by the bar graph can be described by the mathematical model P = 4 x 5 + 25 where x is the number of years after 1980 and p is the percentage of U.S. college freshmen who had an average grade of A in highschool. Use this information to solve Exercises 107-108. 107. a. According to the formula, in 2010, what percentage of U.S. college freshmen had an average grade of A in high school? Does this underestimate or overestimate the percent displayed by the bar graph? By how much? 49. % overestimates by 1% b. If trends shown by the formula continue, project when57% of US. college freshmen will have and an averagegrade of A in high school 2020
Grade Inflation . The bar graph shows the percentage of UScollege freshmen with an average grade of A in high school. The data displayed by the bar graph can be described by the mathematical model P = 4 x 5 + 25 where x is the number of years after 1980 and p is the percentage of U.S. college freshmen who had an average grade of A in highschool. Use this information to solve Exercises 107-108. 107. a. According to the formula, in 2010, what percentage of U.S. college freshmen had an average grade of A in high school? Does this underestimate or overestimate the percent displayed by the bar graph? By how much? 49. % overestimates by 1% b. If trends shown by the formula continue, project when57% of US. college freshmen will have and an averagegrade of A in high school 2020
Solution Summary: The author calculates the percentage of U.S. college freshmen who had an average grade of A in high school in year 2010.
Grade Inflation. The bar graph shows the percentage of UScollege freshmen with an average grade of A in high school.
The data displayed by the bar graph can be described by the mathematical model
P
=
4
x
5
+
25
where x is the number of years after 1980 and p is the percentage of U.S. college freshmen who had an average grade of A in highschool. Use this information to solve Exercises 107-108.
107. a. According to the formula, in 2010, what percentage of U.S. college freshmen had an average grade of A in high school? Does this underestimate or overestimate the percent displayed by the bar graph? By how much? 49. % overestimates by 1%
b. If trends shown by the formula continue, project when57% of US. college freshmen will have and an averagegrade of A in high school 2020
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