A researcher is studying a possible relationship between eye color and vision. The eye colors studied are blue and brown. Quality of vision is separated into three categories: poor, average, and good. The following is the frequency matrix from the sample. What is the chi-square statistic for the study?

Which statement justifies why angle ebc measures 90?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Lines b and c are parallel. what is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°