A sample of college students was asked how much they spent monthly on cell phone plans. Approximate the standard deviation for the cost.Monthly cell phone plan cost (5)Number of students10.00-19.99820.00-29.991930.00-39.992740.00-49.991450.00-59.996The sample standard deviation for the cost is $(Round to the nearest cent as needed.)

Given Information: The given data is, Monthly call phone plan cost($) Number of students…

Answered: A sample of college students was asked…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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This data is from a sample. Calculate the . deviation, and coefficient of variation. Suggestion: use technology. Round answers to two decimal places. , standard 19.4 31.4 42.1 17.8 25.7 10.2 18.7 35.7 28.5 Standard Deviation = 9.43 Coefficient of Variation Question Help: Message instructor
Calculate the sample standard deviation and the population standard deviation of the data shown using your calculator. Round to two decimal places. 13 22 14 18 20 25 15 29 Sample standard deviation = Population standard deviation =
Determine whether the graph shown could represent a variable with a normal distribution. Explain your reasoning. If the graph appears to represent a normal distribution, estimate the mean and standard deviation. 4 ..... Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. The graph could represent a variable with a normal distribution because the curve is symmetric and bell-shaped. Its mean is approximately and standard deviation is approximately (Round to one decimal place as needed.) O B. The graph could not represent a variable with a normal distribution because the curve crosses the x-axis. O C. The graph could not represent a variable with a normal distribution because the curve has two modes. O D. The graph could not represent a variable with a normal distribution because the graph is skewed to the right. O E. The graph could not represent a variable with a normal distribution because the graph is skewed to the left. O F. The…
The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find the mean, median, mode, and standard deviation. Round to one decimal place as needed. Use technology.19, 22, 26, 28, 29, 31, 35, 35Mean = Median = Mode = Standard Deviation =
TEN Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 110 minutes and astandard deviation of 15 minutes. What proportion of 1040R tax forms will be completed in less than 106 minutes? Round your answer to at least four decimal places.
The coefficient of variation CV describes the standard deviation as a percent of the mean. Because it has no units, you can use the coefficient of variation to compare data with different units. Find the coefficient of variation for each sample data set. What can you conclude? Standard deviation CV = • 100% Mean E Click the icon to view the data sets. Data Table ..... CVneights = 71.2% (Round to the nearest tenth as needed.) Heights Weights 68 181 77 169 72 167 72 207 71 177 70 175 78 185 69 186 67 221 70 216 67 209 73 206
The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range, mean, variance, and standard deviation of the sample data set. 1212, 1818, 2323, 1414, 1515, 1818, 1919, 1616, 1313, 1616 The range is 1111. (Simplify your answer.) The mean is 16.416.4. (Simplify your answer. Round to the nearest tenth as needed.) The variance is nothing. (Simplify your answer. Round to the nearest hundredth as needed.) The standard deviation is nothing. (Simplify your answer. Round to the nearest tenth as needed.)
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100 92 77.5 76.5 76.5 92 90 74 80 74 89 73.5 88.5 72 71 87.5 69 87 66 86 87 86 86 85 81 781. Compute for the mean and the standard deviation. 2. What is the proportion above 87.5? 3. What is the proportion between 80 and 87? 4. What is the CEEB score of 74? 5. What is the Deviation IQ for a T of 37.5? 5______ Classify the student/s performance who got a score of 74? a) Poor b) below Ave c) Average d) Above Average e) Superior 5. What is the score equivalent to 96 percentile? _____ 6. What is D5? 7. What is D8? 8. Is the data set a normal distribution? Justify

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