Suppose that the number of customers arriving each hour at the only checkout counter at a local convenience store is approximately Poisson distributed with an expected arrival rate of 30 customers per hour. Let X represent the number of customers arriving per hour. The probabilities associated with X are shown below.
?
P(X< 5) = 0.0000, P(X< 10) = 0.0000, P(X< 15) = 0.0009
P(X< 20) = 0.0219, P(X< 25) = 0.1572, P(X< 30) = 0.4757
P(X = 30) = 0.0726, P(X = 31) = 0.0703, P(X = 32) = 0.0659
P(X = 33) = 0.0599, P(X = 34) = 0.0529, P(X = 35) = 0.0453
What is the probability that fewer than 33 customers arrive at this checkout counter in a given hour?
What will be an ideal response?
0.6718
You might also like to view...
The Uniform Commercial Code (UCC) is fully adopted by all U.S. states except:
A) Virginia. B) North Dakota. C) Wisconsin. D) Louisiana. E) Montana.
Both central ideas and speci?c purposes must be expressed as phrases
Indicate whether this statement is true or false.
What is a transactional leader? What is a transformational leader? Explain how the two types of leadership differ.
What will be an ideal response?
If the disposal of a segment meets the criteria of a disposal of a segment, then:
a. the loss on disposal is an extraordinary item. b. the loss on disposal is categorized as "other expense". c. the results of operations of the segment will be reported in conjunction with the gain or loss on disposal. d. the disposal qualifies as a change in entity, and prior years' statements presented on comparative purposes must be restated. e. the effects of the disposal are shown as part of operations.