Suppose the random variable X has the probability mass fu Calculate P(X 1). 1/7 if * = 0 2/7 if * = 1 fx ( ) = 1/2 if * = 3 1/14 if x = 5 O otherwise O (2/7) 1 - (2/7) - (1/7) O 1/2 (1/2) + (1/14) O (1/2) + (1/14) 1 - (2/7) O 1 There is an error with the provided pmf such that it is not an actual prof. The provided pmf is correct, but none of the calculations are correct. O (1/2) + (2/7) + (1/7) (2/7) + (1/2) + (1/14)