Mathematics, 15.04.2020 23:34 joho38
The mean per capita income is 20,908 dollars per annum with a standard deviation of 407 dollars per annum. What is the probability that the sample mean would be less than 20948 dollars if a sample of 55 persons is randomly selected? Round your answer to four decimal places.
Answers: 3
Mathematics, 20.06.2019 18:04, andrewisboss59
In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=9, and ac=12, find hc.
Answers: 3
Mathematics, 21.06.2019 15:20, kuehlthau03
Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?
Answers: 3
The mean per capita income is 20,908 dollars per annum with a standard deviation of 407 dollars per...
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