The probability distribution of a random variable X is given below.

X=x	2	4	6	8
P(X=x)	0.25	0.25	0.40	0.10

1. Calculate the expected value of X

2. Calculate the standard deviation of X to four decimal places

3. Calculate P(X<8X>2) to four decimal places

4. Does X have a uniform distribution? Briefly justify your answer