Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: 911 CALLS A 911 service center recorded the number of calls received per hour. The number of calls per hour for one week can be approximated by the following probability distribution. [x] [0] [1] [2] [3] [4] [5] [6] [7] [P open parentheses x close parentheses] 0.01 0.1 0.26 0.33 0.18 0.06 0.03 0.03 * Find the mean of the probability distribution to three significant digits. _____ * Find the variance of the probability distribution to three significant digits. _____ * Find the standard deviation of the probability distribution to three significant digits _____ * Find the expected value of the probability distribution to three significant digits. _____
Right answer summary: part 1: 3.02; part 2: 1.92; part 3: 1.39; part 4: 3.02
Question state: todo