The Seattle Space needle is 604 feet tall. A model of the building is 48 inches tall. What is the ratio of the height of the mod
2 answers:
Answer:
The ratio of the height of the model to the height of the actual Space Needle is 1:151 .
Option (C) is correct .
Step-by-step explanation:
As given
The Seattle Space needle is 604 feet tall.
A model of the building is 48 inches tall.
As 1foot = 12 inches
Now convert 604 feet into inches .
604 feet = 604 × 12 inches
= 7248 inches
Ratio of the height of the model to the height of the actual Space Needle .
Therefore the ratio of the height of the model to the height of the actual Space Needle is 1:151 .
Option (C) is correct .
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Answer:
0.048 is the probability that more than 950 message arrive in one minute.
Step-by-step explanation:
We are given the following information in the question:
The number of messages arriving at a multiplexer is a Poisson random variable with mean 15 messages/second.
Let X be the number of messages arriving at a multiplexer.
Mean = 15
For poison distribution,
Mean = Variance = 15
From central limit theorem, we have:
where n is the sample size.
Here, n = 1 minute = 60 seconds
P(x > 950)
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0.048 is the probability that more than 950 message arrive in one minute.