Not everyone pays the same price forthe same model of a car. The figureillustrates a normal distribution for theprices paid for a particular model of anew car. The mean is $18,000 and thestandard deviation is $1000.Use the 68-95-99.7 Rule to find thepercentage of buyers who paid morethan $21,000.Number of Car Buyers-99.7%--95%-68%-15 161719Price of a Model of a New Car (Thousands)The percentage of buyers who paid more than $21.000 is

68-95-99.7 rule says that 68% of the items of the population falls with one standard deviation, 95%…

Answered: Not everyone pays the same price for…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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1. In a sentence or two, explain what a sampling distribution is. 2. In a sentence or two explain how the standard error of the mean is similar to the standard deviation.
K A commuter tallied the time to work for 200 days and found that it resembled a normal curve. The mean time was 50 minutes, and the standard deviation was 2 minutes. For the 200-work-day experiment, find the percent of time commuting to work less than 44 minutes. 44 Minutes to Commute to Office 1 46 48 68%- 95% 99/7% 50
A distribution has mean 100 and standard deviation 3. What is the largest percent of the data that is guaranteed to be between 40 and 160 93.75 96 97.44 99.75 99.99
Using technology, find the range and standard deviation, round to one decimals place:The table below gives the number of hours spent watching TV last week by a sample of 24 children. 20 39 34 29 48 84 64 25 75 89 40 57 82 43 62 52 49 59 38 87 49 66 95 17 Range = 78 Standard Deviation = 22.6
Find the mean and standard deviation for the individualized instruction scores. Scores Individualized Instruction 50 - 59 4 60 – 69 8 70 - 79 6 80 - 89 8 90 - 99 3 Mean = (Round to the nearest hundredth.)
Recently, a random sample of 25-34 year olds was asked, "How much do you currently have in savings, not including retirement savings?" The data in the table represent the responses to the survey. Approximate the mean and standard deviation amount of savings. EEB Click the icon to view the frequency distribution for the amount of savings Frequency distribution of amount of savings The sample mean amount of savings is $ (Round to the nearest dollar as needed ) Savings $0-$199 Frequency 344 The sample standard deviation is $ $200-$399 93 (Round to the nearest dollar as needed.) 65 $400-$599 $600-$799 24 $800-$999 10 $1000-$1199 $1200-$1399 1 Print Done %23 e here to search lyi
Answer all parts.
Biology A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 52.2 mm and a standard deviation of 2.3 mm. What percent of the butterflies had a wingspan between 50 and 55 mm?
z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?
Using your calculator, find the range and standard deviation, round to two decimals places:The table below gives the number of hours spent watching TV last week by a sample of 24 children. 90 50 46 31 52 83 51 90 72 47 25 57 53 62 65 89 35 49 32 21 77 30 91 13 Range = Standard Deviation =
Ten friends kept track of how many times they sent a text over a one hour period. The results are in the table below. number of texts 5 6 7 7 8 10 10 15 16 17 They determine that the mean of the data set is 10.110.1, but they also want to know the range and standard deviation. Calculate the range of the data set.Is this correct answer 12? Calculate the POPULATION (since it's just two friends, they're the population) standard deviation of the data set.I have a hard time
Recently, a random sample of 13–18 year olds was asked, "How much do you currently have in savings?" The data in the table represent the responses to the survey. Approximate the mean and standard deviation amount of savings. LOADING... Click the icon to view the frequency distribution for the amount of savings. Savings Frequency $0– $199 343 $200– $399 94 $400– $599 62 $600– $799 21 $800– $999 9 $1000– $1199 5 $1200– $1399 3 The sample mean amount of savings is $nothing. (Round to the nearest dollar as needed.) The sample standard deviation is $nothing. (Round to the nearest dollar as needed.)

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