(Substitute c = -2d + 8 in ‘c’ spot in the other equation) 4c + 3d = 2 4(-2d + 8) + 3d = 2 distribute -8d + 32 + 3d = 2 combine liked terms -5d + 32 = 2 -32 on both sides -5d = -30 /-5 on both sides d = 6
(substitute d = 6 in the ‘d’ spot in either equations) c = -2d + 8 c = -2(6) + 8 distribute c = -12 + 8 combine liked terms c = -4
Answer: An interval is a range of values for a statistic.
Explanation:
For example, you might think that the mean of a data set falls somewhere between 10 and 100 (10 < μ < 100). That “somewhere between 5 and 15%” is an interval estimate.
C- correct a mistaken view The author is correcting the idea that Harriet Ida Pickens and Frances Wills were the first African American women to serve in the navy.