If cars arrive to a service center randomly and independently at a rate of 10 per hour on average, what is the probability of 5 cars arriving in a given hour?
a. 0.038
b. 0.1755
c. 0.05
d. 0.0067
If cars arrive to a service center randomly and independently at a rate of 10 per hour on average, what is the probability that exactly 10 cars will arrive during a 30 minutes period?
a. 0.1277
b. 0.1755
c. 0.6160
d. 0.018
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