Mathematics

Mathematics, 05.07.2019 23:30, kaziyahf2006

According to the mean price for a detached house in franklin county, oh in 2009 was $192,723. suppose we know that the standard deviation was $42,000. check the three assumptions associated with the central limit theorem. what is the probability that a random sample of 75 detached houses in franklin county had a mean price greater than $190,000 in 2009?

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Mathematics, 02.07.2019 00:30, carthur71

The mean price for a home in a florida county is $125,000. the standard deviation for the same sample is $23,000. what percentage of homes in the county are valued over $100,000? use the standard normal probabilities table to find your answer. enter your answer with two places. i keep getting 86.15% the answer is supposed to be 86.21% i am not sure what i did wrong so explain what you did.

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Mathematics, 16.07.2019 23:40, RandomLollipop

Here are the prices of five new skateboards, in dollars: 75, 82, 100, 120, 140. the standard deviation is about $27. if a sixth skateboard is added to the sample that has a price of $450, what happens to the standard deviation? a) the new standard deviation is less than $27 b) the new standard deviation si $477 c) the new standard deviation is still $27 d) the new standard deviation is greater than $27

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Mathematics, 09.10.2019 04:00, Frenchfries13

The asking price for homes on the real estate market in baltimore has a mean value of $286,455 and a standard deviation of $11,200. the mean and standard deviation in asking price for homes in denver are $188,468 and $8,230, respectively. recently, one home sold in each city where the asking price for each home was $193,000. based on these data, which of the following conclusions can be made? (a) the two homes have approximately the same standardized values.(b) the distribution of asking prices in the two cities is bell-shaped.(c) the house in baltimore is relatively farther from the mean than the house in denver.(d) the asking prices of homes in denver is less variable than those in baltimore.

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Mathematics, 15.10.2019 01:40, joelpimentel

Here are the prices of five new bicycles, in dollars: 25, 30, 50, 77, 80. the standard deviation is about $26. if a sixth bike is added to the sample that has a price of $400, what happens to the standard deviation? a. the new standard deviation is less than $26. b. the new standard deviation is greater than $26. c. the new standard deviation is $426. d. the standard deviation is still $26.

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According to the mean price for a detached house in franklin county, oh in 2009 was $192,723. suppo...

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