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When a distribution is mound-shaped

The distribution of scores on a test is mound-shaped and symmetric with a mean score of 78. If 68% of the scores fall between 72
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2. asked by MJ
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Suppose X has a mound-shaped distribution with sigma=9. A random sample of size 36 has a sample mean 20. Is it appropriate to
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2. asked by Tracey
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The statement 'The median of a distribution is approximately equal to themean of the distribution' can be made true by adding
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2. asked by Anonymous
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suppose x has a mound-shaped distribution. A random sample size 16 has a sample mean of 10 and a sample standard deviation of 2.
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2. asked by Yira f
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AAA reports that the average age of a car on U.S. roads in recent years has risen to 7.5 years. Suppose that the distribution of
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2. asked by Anonymous
3. 629 views
When a distribution is mound-shaped symmetrical, what is the general relationship among the values of the mean, median, and
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2. asked by Jr
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Suppose x has a mound-shaped distribution with sigma = 9 . A random sample of size 36 has sample mean 20. Is it appropriate to
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2. asked by Steph
3. 1,133 views
suppose x has a mound-shaped distribution with sigma=3. Find the minimal sample size required so that for a 95% confidence
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2. asked by Yira f
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the distribution of scores on a test is mound shaped and dsymmetric with a mean score of 78. if 68 percent of the scores fall
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2. asked by Josh
3. 1,034 views
A college’s data about the incoming freshmen indicates that the mean of their high school GPAs was 3.4, with a standard
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2. asked by Lissa
3. 1,122 views