Vertical stretch by a factor of 3 and a reflection over x-axis is g(x)= -3|x|
All socks together: 13
Black socks: 3
Probability to pick out black socks: 3/13
After one pick out (You picked out a pair of black socks):
Probability to pick out black socks: 2/12
Multiply them:
2/12 * 3/13 = 1/26 ≈ 0,038
I think the answer may be D. You can graph the points and draw a line through the points to see what other points are intersected by the line.
The range of a list of numbers is the biggest number minus the smallest number. In this case, it is $4.79-$4.09 which equals $0.70.
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