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zzz [600]
3 years ago
14

Item 9 The bar graph shows the numbers of reserved campsites at a campground for one week. What percent of the reservations were

for Friday or Saturday? Write the percent as a mixed number in simplest form.
Mathematics
1 answer:
Alexxx [7]3 years ago
7 0
Need a picture of the graph man!

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The weekly salaries of sociologists in the United States are normally distributed and have a known population standard deviation
netineya [11]

THIS IS THE COMPLETE QUESTION BELOW;

The weekly salaries of sociologists in the United States are normally distributed and have a known population standard deviation of 425 dollars and an unknown population mean. A random sample of 22 sociologists is taken and gives a sample mean of 1520 dollars.

Find the margin of error for the confidence interval for the population mean with a 98% confidence level.

z0.10 z0.05 z0.025 z0.01 z0.005

1.282 1.645 1.960 2.326 2.576

You may use a calculator or the common z values above. Round the final answer to two decimal places.

Answer

Margin error =210.8

Given:

standard deviation of 425

sample mean x=1520 dollars.

random sample n= 22

From the question We need to to calculate the margin of error for the confidence interval for the population mean .

CHECK THE ATTACHMENT FOR DETAILED EXPLANATION

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The answer is b x/3-8
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Evaluate log12 - log4 + log5 and can you explain it to me?
mario62 [17]
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log(a)+log(b)=log(ab)
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work from left to right

log(12)-log(4)+log(5)=
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What is the perimeter of DEFG, shown?
Murrr4er [49]

Answer:

C.34

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