3 years ago

Find the Mean of (140, 150, 160, 170) Help?

Mathematics

1 answer:

vovikov84 [41]3 years ago

3 0

The mean is 155. you add them up then divide by how many so 4 in this case.

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Suppose that Elsa and Frank determine confidence intervals based on the same sample proportion and sample size. Elsa uses a larg

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Answer:

elsa's interval width will be greater than that of frank

Step-by-step explanation:

first of all we are told that both Elsa and Frank have the same sample proportion so their midpoint is also going to be the same.

now as the confidence level goes higher, so also would the margin of error increase. then the width of the confidence interval would rise so it can be more confident.

from this question elsa has a larger confidence level therefore her intervals width will be greater than franks own.

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3 years ago

While exercising Ricardo walked 1/8 of a mile in 1/9 of an hour. At this rate, how far will he have travelled after an hour?

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