Andy was given data to draw 3 scatter diagrams. He also decided to draw a line of best fit on each one.
501
100
50
90
XI
40
40
1X
X
80
70
30
30
60
50
20
20
10
10
40
X
30
X
20
IX
10
0
0 10 20 30 40 50 60 70 80 90 100
Diagram B
Oo
08
10
20
30
40
50
8
Diagram C
Diagram A
a) What type of correlation is shown in diagram A?
b) Which diagram shows the strongest correlation?
c) Which line of best fit should not have been drawn?
Give a reason for your answer

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.