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ozzi
3 years ago
11

A time capsule was sealed in 1940 and will be opened on the same date in 2018.How long will the time capsule remain sealed

Mathematics
1 answer:
Ludmilka [50]3 years ago
6 0
 It would be about 76 years.
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Answer:

Step-by-step explanation:

Given that taxi Fares are normally distributed with a mean fare of $22.27 and a standard deviation of $2.20.

For a random single taxi std deviation is 2.20

But for a sample of size 10, std deviation would be

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Because std devition is less for sample we get a big z score for the sample than the single.  

As positive values of z increase we find that probability would decrease since normal curve is bell shaped.

So single taxi fare would have higher probability than sample.

B) Here >24.

By the same argument we have z value less for single taxi hence the probability for more than that would be less than that of sample size 10

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