The dot plots show the test scores for two classes taught by the same teacher. Are the test scores significantly greater for one class than the other?

PLEASE PUT WHY ALSO!!!

B

Step-by-step explanation:

The standard form of equation of a circle is

(x-h)^2+(y-k)^2=r^2

Where h is x coordinate of the centre, k is the y coordinate of the centre and r is the radius of the circle

Hence given that h=5, k=-9 and r=12

So the above equation becomes

(x-5)^2+(y-(-9))^2=(12)^2

(x-5)^2+(y+9)^2=144

Hence the answer is B