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Author Question: Let X represent the amount of time till the next student will arrive in the library parking lot at ... (Read 94 times)

dalyningkenk

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on: Jun 24, 2018
Let X represent the amount of time till the next student will arrive in the library parking lot at the university. If we know that the distribution of arrival time can be modeled using an exponential distribution with a mean of 4 minutes (i.e. the mean number of arrivals is 1/4 per minute), find the probability that it will take between 2 and 12 minutes for the next student to arrive at the library parking lot.
 
  A) 0.049787 B) 0.606531 C) 0.656318 D) 0.556744

Question 2

Let X represent the amount of time until the next student will arrive in the library parking lot at the university. If we know that the distribution of arrival time can be modeled using an exponential distribution with a mean of 4 minutes (i.e. the mean number of arrivals is 1/4 per minute), find the probability that it will take more than 10 minutes for the next student to arrive at the library parking lot.
 
  A) 0.329680 B) 0.917915 C) 0.082085 D) 0.670320


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Shshxj

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Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

C


dalyningkenk

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Reply 2 on: Jun 24, 2018
Wow, this really help

xthemafja

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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