Normally 8% is deducted as social security tax.
So,
8% of 835 = 8/100 x 835
= $56.36 (approx.)
The plot of the PDF shows the distribution is symmetric. This means that the mean is the same as the median, and that the 50% of the distribution lies to other side of this mean, i.e.

For this distribution,
.
Answer:
The point is (2,-2)
Explanation: