| X | Y |
| 10 | 8 |
| 8 | 8 |
| 6 | 7 |
| 2 | 4 |
SSX=?
SSY=?
SSXY=?
r=?
Question 7 0.5 pts A set of n = 4 pairs of scores (X and Y values) has SSX-5, SSY-625, and SSXY-50. The coefficient of determination (R2) for these data is__.. (Round your answer to two decimal places.)
Question 7 0.5 pts A set of n = 4 pairs of scores (X and Y values) has SSX-5, SSY-625, and SSXY-50. The coefficient of determination (R2) for these data is__.. (Round your answer to two decimal places.)
A set of n=10 pairs of X and Y scores has SSx=14, SSy=84, and SP=28. What is the slope of the regression equation for these scores? Answer:
A researcher obtains SSX = 20, SSY = 5, and SP = 7 for a set of n = 25 pairs of scores. The Pearson correlation for these scores is r = 7/10 = 0.70. Hint: Look VERY carefully at your formula sheet, especially at the alternative definitional formula for r (wow, I can't believe I actually told you that). True False
Below is data for two variables, X and Y. Answer the questions that follow. X Y X-MX Y-MY (X-MX)2 (Y-MY)2 (X-MX)(Y-MY) 0 4 -3 -1 9 1 3 2 3 -1 -2 1 4 ___ 4 7 1 ___ 1 4 2 6 6 3 1 ___ 1 3 MX = _____; MY = _____ MX = 5; MY = 4 MX = 3; MY = 5 MX = 4; MY = 4 MX = 12; MY = 20 What...
a. A set of n = 15 pairs of X and Y scores has SSx = 10, SSy = 40, and SP = 30. What is the slope for the regression equation for predicting Y from X? b. For the regression equation Y = 2X – 3, if the mean for X is x̅ = 5, what is the mean for Y? Show work
101 8 7 6 5 4 2 r -10 -3 -6 4 10 -7 Give numeric values for each of the following. Write "DNE" if the value does not exist and "0" or "-20" as appropriate. lim f'(-8) = lim f(x) = 1() de f(3+At) - (3) lim (1) = lim A- lim f(x) - (2) 12 I-2 lim f(1) = limf(1) =
X 3 5 7 5 6 7 9 4 8 6 Y 6 9 12 10 14 12 14 8 15 10 Discuss the relation between X and Y using an appropriate method. If possible, try to find the relation between X and Y treating X as independent variable?
Case X Y 108 133 132 3 109 114 4 118 110 5 94 98 6 111 103 7 107 6 8 125 130 9 120 122 10 119 126 11 127 122 12 109 118 13 90 95 14 95 103 15 112 118 16 100 94 17 93 90 107 11 18 19 122 114 20 118 124 21 109 116 22 112 117 23 121 109 24 109 107 25 12 110 3 рoints их 3 рoints...
x-4 7. Pax- 8. 4x-y=3 (3x +2y=-18 10. 1, y=2x-4 12.13x+4y-8 r=-4
Function f is graphed. y 9 8 7 6+ y = f(x) CT 4+ 3+ 2+ 1+ H4+ 29-8-7 -6 -5 -4 3-2 1 2 3 4 5 6 7 8 9 -2 -3 4 -50 1 A 2+ M من 4 -58 -6 -8 -9 What appears to be the value of lim f(x)? 20+ 07 0-5 Unbounded Function g is graphed. → see y= g(2) 9 8 7+ 6+ 5+ 4+ es 2+ 1+ A+++ -9 -8 -7...