X - y =2 X + y= -3
What is (x,y)

(-1/2,-5/2)

Step-by-step explanation:

x-y = 2

x+y = -3

Through Elimination, we can just add the system of equations. The y cancels out and gives us the single equation for x:

2x = -1

x = -1/2

Substitute -1/2 for x in either equation and you get:

(-1/2) + y = -3     Solve for y

y = -5/2

The comparisons are as follows:

Extremes:

Let the upper box plot be for class 1 and the second one be for class 2

The lowest value in class 1 is 53 and for class 2 is 56 while the highest value for class 1 is 89 and for class 2 is 96.

Ranges:

The range for class 1 is: 89-53 = 36

The range for class 2 is: 96-56 = 40

Class 2 has a range larger than class 1

Quartiles:

For class 1:

First quartile: 62

Third quartile: 86

IQR: 86-62 = 24

For class 2:

First quartile: 62

Third quartile: 89

IQR: 86-62 = 27

The IQR for class 2 is larger than IQR of class 1.

Medians:

The median for class one is: 80 and for class 2 is 74

Hence we can conclude that the scores of class 2 are more spread than the scores of class 1 ..