Statitics math
heaven4040
math_questions_weeks_3-7_7.docxWeek 3
Assignment -Distance Formula
d = √(x - x)2 + (y - y)2
Find the distance between the following points.
1. (1, 2) and (3 , 4)
2. (-2, 3) and (4, -5)
3. (4, -3) and (2, -1)
4. (1, 3) and (4, 7)
Week 5
Assignment Exercises
Write each of the following linear systems as an augmented matrix.
·
Week 6
Mat210 Review of Solving Systems of Equations
1. One year a couple invested $10,000 in two projects. The first investment had a 6% profit and the other had a 12% profit. Their investments made $960, how much was invested at each rate? Write a system of equations and solve using any method you wish.
Solve each system using the method indicated.
By Substitution:
2. x – y = 4 3. x = y - 4
2x + y = 5 2x + 3y = 7
by Addition:
4. 5x + 6y = 12 5. 2x – 3y = 16
10x = - 12y + 24 -4x + y = - 22
Week 7
Graph the Inequalities - Assignment
Find the graphical solution set for each inequality.
1. y > 3x - 5 3. -8y ≤ 40
2. -3y < x - 12 4. 4x + 2y ≥ 4
Week 7, 216
13.12 State the four assumptions required for one-way ANOVA. How crucial are these assumptions?
13.13 One-way ANOVA is a procedure for comparing the means of several populations. It is the generalization of what procedure for comparing the means of two populations?
13.14 If we define s = √ MSE, of which parameter is s an esti- mate?
