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value 10.00 points Consider the following frequency distribution. Class 2 up to 4 4 up to...
The following relative frequency distribution was constructed from a population of 300. Calculate the population mean,...
The following relative frequency distribution was constructed from a population of 300. Calculate the population mean, the population variance, and the population standard deviation. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) Class Relative Frequency −20 up to −10 0.08 −10 up to 0 0.22 0 up to 10 0.38 10 up to 20 0.32 Population mean Population variance Population standard deviation
The following relative frequency distribution was constructed from a population of 250. Calculate the population mean,...
The following relative frequency distribution was constructed from a population of 250. Calculate the population mean, the population variance, and the population standard deviation.(Negative values should be indicated by a minus sign. Round your intermediate calculations to 4 decimal places and final answers to 2 decimal places.) Class Relative Frequency −20 up to −10 0.30 −10 up to 0 0.24 0 up to 10 0.34 10 up to 20 0.12 Population mean Population variance Population standard deviation
The following relative frequency distribution was constructed from a population of 200. Calculate the population mean,...
The following relative frequency distribution was constructed from a population of 200. Calculate the population mean, the population variance, and the population standard deviation. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) Class Relative Frequency −20 up to −10 0.35 −10 up to 0 0.20 0 up to 10 0.40 10 up to 20 0.05 pop mean = pop variance= pop standard deviation=
Consider a sample with 10 observations of 11, –3, 8, 8, 10, 1, –2, 13, 8,...
Consider a sample with 10 observations of 11, –3, 8, 8, 10, 1, –2, 13, 8, and –4. Use z-scores to determine if there are any outliers in the data; assume a bell-shaped distribution. (Round your answers to 2 decimal places. Negative values should be indicated by a minus sign.) The z-score for the smallest observation The z-score for the largest observation There are outliers or no outliers in the data. The historical returns on a portfolio had...
Consider a sample with 10 observations of 11, –3, 8, 8, 10, 1, –2, 13, 8,...
Consider a sample with 10 observations of 11, –3, 8, 8, 10, 1, –2, 13, 8, and –4. Use z-scores to determine if there are any outliers in the data; assume a bell-shaped distribution. (Round your answers to 2 decimal places. Negative values should be indicated by a minus sign.) The z-score for the smallest observation The z-score for the largest observation There are outliers or no outliers in the data. The historical returns on a portfolio had...
The historical returns on a portfolio had an average return of 21 percent and a standard...
The historical returns on a portfolio had an average return of 21 percent and a standard deviation of 29 percent. Assume that returns on this portfolio follow a bell-shaped distribution. a. Approximately what percentage of returns were greater than 79 percent? (Round your answer to the nearest whole percent.) b. Approximately what percentage of returns were below –66 percent? (Round your answer to 1 decimal place.) ____________________________________________________________________________________________________________________________ The following relative frequency distribution was constructed from a population of 400. Calculate...
Twenty-nine cities provided information on vacancy rates (in percent) for local apartments in the following frequency...
Twenty-nine cities provided information on vacancy rates (in percent) for local apartments in the following frequency distribution. Vacancy Rate (in percent) Frequency 0 up to 3 7 3 up to 6 4 6 up to 9 8 9 up to 12 5 12 up to 15 5 b. Calculate the variance and the standard deviation for this sample. (Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) 2 decimal spaces required* Variance: Standard...
The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax...
The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation. Compare these results to the actual mean y = $1.545 and standard deviation o = $0.941 Click the icon to view the frequency distribution for the tax rates The population mean is $ (Round to three decimal places as needed.) The population standard deviation is s (Round to three decimal...
Thirty-nine cities provided information on vacancy rates (in percent) in local apartments in the following frequency...
Thirty-nine cities provided information on vacancy rates (in percent) in local apartments in the following frequency distribution. Vacancy Rate (in percent) Frequency 0 up to 3 7 3 up to 6 4 6 up to 9 9 9 up to 12 6 12 up to 15 13 a. Calculate the average vacancy rate. (Round your answer to 2 decimal places.) Average vacancy rate b. Calculate the variance and the standard deviation for this sample....
Calculate the sample standard deviation and sample variance for the following frequency distribution of heart rates...
Calculate the sample standard deviation and sample variance for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Heart Rates in Beats per Minute Class Frequency 56 - 62 8 63 - 69 10 70 - 76 2 77 - 83 14 84 - 90 6
The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation. Compare these results to the actual mean y = $1.545 and standard deviation o = $0.941 Click the icon to view the frequency distribution for the tax rates The population mean is $ (Round to three decimal places as needed.) The population standard deviation is s (Round to three decimal...
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