Answer:
the base is 10 and the height is 6.4
Well, first in total there are 16 marbles. So the change of getting a black is 7/16. Now we have 15 marbles. The chance is 6/15. Now we have 14 marbles. The chance is 9/14. When you multiply 7/16 x 6/15 x 9/14 = 9/80
Hope this works
Domain: 1 2 3 4 5 6 range: -1 0 1 2 3 6
-0.8 would be the best estimate.
The data seem to have a negative correlation, since they are decreasing; this means our r-value will be negative.
Our two negative choices are -0.25 and -0.8. -0.8 would be a fairly strong correlation, whereas -0.25 would be a weak correlation. The data do seem to be fairly strongly related, so we will use -0.8.