![The average rent in a city is $1,410 per month with a standard deviation of $210. Assume rent follows the normal distribution. [You may find it useful to reference the ztable.] a. What percentage of rents are between $780 and $2,040? (Round your answer to the nearest whole percent.) Percentage of rents b. What percentage of rents are less than $780? (Round your answer to 1 decimal place Percentage of rents c. What percentage of rents are greater than $1,620? (Round your answer to 1 decimal place.) Percentage of rents](http://img.homeworklib.com/questions/6d387400-7578-11ea-81ba-2fa1dd4af317.png?x-oss-process=image/resize,w_560)
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The average rent in a city is $1,410 per month with a standard deviation of $210....
Ch. 6 #6: please assist with answers for a, b, and c in percentages: The average...
Ch. 6 #6: please assist with answers for a, b, and c in percentages: The average rent in a city is $1,680 per month with a standard deviation of $200. Assume rent follows the normal distribution. [You may find it useful to reference the z table.] a. What percentage of rents are between $1,480 and $1,880? (Round your answer to the nearest whole percent.) b. What percentage of rents are less than $1,480? (Round your answer to 1 decimal place.)...
The historical returns on a portfolio had an average return of 15 percent and a standard...
The historical returns on a portfolio had an average return of 15 percent and a standard deviation of 18 percent. Assume that returns on this portfolio follow a bell-shaped distribution. a. Approximately what percentage of returns were greater than 33 percent? (Round your answer to the nearest whole percent.) Percentage of returns b. Approximately what percentage of returns were below –21 percent? (Round your answer to 1 decimal place.) Percentage of returns
The historical returns on a portfolio had an average return of 24 percent and a standard...
The historical returns on a portfolio had an average return of 24 percent and a standard deviation of 31 percent. Assume that returns on this portfolio follow a bell-shaped distribution. a. Approximately what percentage of returns were greater than 86 percent? (Round your answer to the nearest whole percent.) b. Approximately what percentage of returns were below –69 percent? (Round your answer to 1 decimal place.)
Data are drawn from a bell-shaped distribution with a mean of 95 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 95 and a standard deviation of 6. a. Approximately what percentage of the observations fall between 83 and 107? (Round your answer to the nearest whole percent.) b. Approximately what percentage of the observations fall between 77 and 113? (Round your answer to the nearest whole percent.) c. Approximately what percentage of the observations are less than 83? (Round your answer to 1 decimal place.)
Data are drawn from a bell-shaped distribution with a mean of 80 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 80 and a standard deviation of 4 a. Approximately what percentage of the observations fall between 72 and 88? (Round your answer to the nearest whole percent.) Percentage of observations b. Approximately what percentage of the observations fall between 68 and 92? (Round your answer to the nearest whole percent.) Percentage of observations c. Approximately what percentage of the observations are less than 76? (Round your answer to 1...
The historical returns on a balanced portfolio have had an average return of 13% and a...
The historical returns on a balanced portfolio have had an average return of 13% and a standard deviation of 16%. Assume that returns on this portfolio follow a normal distribution. [You may find it useful to reference the z table.] a. What percentage of returns were greater than 45%? (Round your answer to 2 decimal places.) b. What percentage of returns were below −35%? (Round your answer to 2 decimal places.)
Please provide simple explanation 6 The historical returns on a balanced portfolio have had an average...
Please provide simple explanation
6 The historical returns on a balanced portfolio have had an average return of 10% and a standard deviation of 11%. Assume that returns on this portfolio follow a normal distribution. [You may find it useful to reference the z table.] a. What percentage of returns were greater than 43%? (Round your answer to 2 decimal places.) 5.33 points Percentage of returns 1.30: % eBook References b. What percentage of returns were below -1%? (Round your...
Data are drawn from a bell-shaped distribution with a mean of 130 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 130 and a standard deviation of 5. There are 1,500 observations in the data set. a. Approximately what percentage of the observations are less than 140? (Round your answer to 1 decimal place.) Percentage of observations b. Approximately how many observations are less than 140? (Round your answer to the nearest whole number.) Number of observations
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $14
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $14. Find the probability that a randomly selected utility bill is (a) less than $65, (b) between $87 and $100, and (c) more than $110. (a) The probability that a randomly selected utility bill is less than $65 is _______ (Round to four decimal places as needed.) Use the normal distribution to the right to answer the questions. (a) What percent of the...
The average playing time of compact discs in a large collection is 37 minutes, and the...
The average playing time of compact discs in a large collection is 37 minutes, and the standard deviation is 3 minutes. (a) What value is 1 standard deviation above the mean? 1 standard deviation below the mean? What values are 2 standard deviations away from the mean? 1 standard deviation above the mean 1 standard deviation below the mean 2 standard deviations above the mean 2 standard deviations below the mean (b) Without assuming anything about the distribution of times,...
Data are drawn from a bell-shaped distribution with a mean of 80 and a standard deviation of 4 a. Approximately what percentage of the observations fall between 72 and 88? (Round your answer to the nearest whole percent.) Percentage of observations b. Approximately what percentage of the observations fall between 68 and 92? (Round your answer to the nearest whole percent.) Percentage of observations c. Approximately what percentage of the observations are less than 76? (Round your answer to 1...
Please provide simple explanation
6 The historical returns on a balanced portfolio have had an average return of 10% and a standard deviation of 11%. Assume that returns on this portfolio follow a normal distribution. [You may find it useful to reference the z table.] a. What percentage of returns were greater than 43%? (Round your answer to 2 decimal places.) 5.33 points Percentage of returns 1.30: % eBook References b. What percentage of returns were below -1%? (Round your...
Data are drawn from a bell-shaped distribution with a mean of 130 and a standard deviation of 5. There are 1,500 observations in the data set. a. Approximately what percentage of the observations are less than 140? (Round your answer to 1 decimal place.) Percentage of observations b. Approximately how many observations are less than 140? (Round your answer to the nearest whole number.) Number of observations
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $14. Find the probability that a randomly selected utility bill is (a) less than $65, (b) between $87 and $100, and (c) more than $110. (a) The probability that a randomly selected utility bill is less than $65 is _______ (Round to four decimal places as needed.) Use the normal distribution to the right to answer the questions. (a) What percent of the...
The average playing time of compact discs in a large collection is 37 minutes, and the standard deviation is 3 minutes. (a) What value is 1 standard deviation above the mean? 1 standard deviation below the mean? What values are 2 standard deviations away from the mean? 1 standard deviation above the mean 1 standard deviation below the mean 2 standard deviations above the mean 2 standard deviations below the mean (b) Without assuming anything about the distribution of times,...
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