53C.d.a. The mean isb. The standard deviation ise.Use the Empirical Rule to answer the following questions.f.56g.59h.62Test Scores65Submit Question68% of the test scores are between 59 and 65.% of the test scores are between 56 and 68.of the test scores are between 53 and 71.% of the test scores are between 62 and 65.% of the test scores are less than 62.% of the test scores are less than 65.71

empirical rule : 68-95-99.7% data fall within 1σ-2σ-3σ of μ.

Answered: 53 C. 56 g- 59 a. The mean is b. The…

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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2 134 70 Janet is planning to rent a booth at a festival for a day to sell clothes that she has made. She sells jackets for $202 and skirts for $138. Her past experiences suggests that sales of jackets will have a mean of 7.7 with a standard deviation of 1.7. and sales of skirts will have a mean of 11.7 with a standard deviation of 2.6. The cost of renting the booth for the day is $233. What are the mean and standard deviation of her net income? (Hint: you should first define random variables and use them to express her net income] O A. u= $2937, G = $496.65 O B. u= $3170, o = $38.94 O C. u= $3170, o = $496.65 O D. u= $2937, o = $3170 O E. µ= $2937, a = $38.94 Click to select your answer. MacBook Air 20 F3 D00 FIT F12 F10 esc FS F6 F7 F4 FI F2 @ #3 & 3 6 8 W Y U
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
222. A random sample of 6 vehicles on the highway had their speed checked. The speeds, in miles per hour, are listed below. 62 75 81 68 72 74 For the given data, find the standard deviation.
are all equal. 3. If a set of grades for a class has a large range and a small standard deviation, what can you say about the class? Include an interpretation that is specific to grades in a class. 4. Why is the median less affected by skewed data than the mean? 5. Is most data likely to be skewed or symmetric? There is no right or wrong here but discuss and take a side on the issue.
22 Michael took 12 tests in his math class. His lowest test score was 78. His highest test score was 98. On the 13th test, he earned a 64. Select whether the value of each statistic for his test scores increased, decreased, or could not be determined when the last test score was added. Standard Deviation Median Mean Increased Decreased Could Not Be Determined acer % & 8
K The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance, and standard deviation of the population data set. 2, 10, 15, 4, 12, 9, 13, 10, 5, 7 The range is 13. (Simplify your answer.) The population mean is 8.7. (Simplify your answer. Round to the nearest tenth as needed.) The population variance is (Simplify your answer. Round to the nearest tenth as needed.)
K A machine fills bags of candy. Due to slight irregularities in the operation of the machine, not every bag gets exactly the same number of pieces. Assume that the number of pieces per bag has a mean of 202 with a standard deviation of 3. Use the 68-95-99.7 rule to find the percentage of values in the distribution between 202 and 208. Complete parts a. and b. below. a. What is the percentage of values in the distribution between 202 and 208? % (Round to one decimal place as needed.)
Refe of gir The The Table of numbers of girls and probabilities Number of Girls x 0 1 2 5678 A WN- 3 4 Print P(x) 0.006 0.035 0.116 0.216 0.263 0.223 0.103 0.035 0.003 Done hts. The ranc
determine the mean round to the nearest tenth if needed. 12,20, 22,13,13,18,22,19,13,17 determine the standard deviation. round to the nearest thousands. 12,20, 22,13, 13,18, 22,19,13,17
NEED HELP WITH: A,B,C please thanks
q9- The sum of squared deviations from the sample mean of a sample of 10 observations is 267. What is variance of the sample? a. 23.73 b. 35.60 c. 59.33 d. 29.67

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