a statistics professor finds that when she schedules an office hour for student help, an average of 2.4 students arrive. find th
e probability that in a randomly selected office hour, the number of student arrivals is 2
1 answer:
Answer:
P=0.2613
Step-by-step explanation:
-Notice that this is a poison probability distribution problem.
-The Poisson probability function is expressed as:

where:
- x=0,1,2,3
Euler's constant
=mean number of occurrences.
Given that x= 2 and
, the probability is calculated as:

Hence, the probability that in a randomly selected office hour, the number of student arrivals is 2 is 0.2613
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