on D Question 2 5 pts ourse A quiz worth 5 points is given to a statistics class. Let X represent the score of a randomly selected student in the class. The probability distribution for X is given below. ve X 0 2 3 4 5 e Tutoring P(x) 0.08 0.11 0.18 0.23 K 0.15 le a. Find the missing value, K. b. Find the standard deviation of the score. Enter the answer for Part (b) in the box below. Round your answer to 4 decimal places