Consider the following discrete probability distribution:

X	-2.25	0	0.25	1.5	2.5
P(X)	0.18	0.18	0.30	0.17	C

a) FindC.

b) What is the expected value ofX?

Round your answer toat least 3 decimal places.

c) What is the variance ofX?

Round your answer toat least 3 decimal places.

d) What is the standard deviation of X?

Round your answer toat least 3 decimal places.