A review of emergency room records at rural Millard Fell more Memorial Hospital was performed to determine the probability distribution of the number of patients entering the emergency room during a 1-hour period. The following table lists this probability distribution.

a. Graph the probability distribution.

b. Determine the probability that the number of patients entering the emergency room during a randomly selected 1-hour period is

i. 2 or more

ii. Exactly 5

iii. Fewer than 3

iv. At most 1

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Patients per hour Probability 0 2 4 5 2725 3543 2303 0998 0324 0084 0023