A residual is a measure of how well a line fits an individual data point. Testing the two other points can really help to see how well the line fits.
Y=1/4x+5/2 is your equation of the line.
By making three groups, you can take all the information and find out how many people like each drink, there are 47 people in each group, so 47 people are accounted for. 50-47=3.
Answer:
IT'S (A)
Step-by-step explanation:
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6x - 2y+ 3z = 17
Solve for x x = 17/6 + y/3 - z/2
Solve for y y = - 17/2 + 3x+ 3z/2
Solve for z z = 17/3 -2x +2y/3
5x - 3y - 2z = 11
Solve for x x = 11/5 + 3y/5 + 2z/5
Solve for y y = -11/3 + 5x/3 + 2z/3
Solve for z z = -11/2 + 5x/2 - 3y/2
2x - 9y -4z = -16
Solve for x x = -8 + 9y/2 + 2z
Solve for y y = 16/9 + 2x/9 - 4z/9
Solve for z z = 4 + x/2 -9y/4
