37. Find the standard deviation and coefficient of variation from the following data: Marks No. of Marks No. of Students Up to 10 Up to 50 157 20 30 60 202 30 65 " 70 222 40 107 " 80 230

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Given,   Mean = 144 Standard deviation = 27   The objective is find the percent of the population…

Q: The following data are the distances from the workplace (in  miles) for the 5 employees of a small…

A: The distances from the workplace (in miles) for the 5 employees of a small business are given as:…

Q: Suppose the people living in a city have a mean score of 40 and a standard deviation of 7 on a…

A: As per guidelines, we will only solve first three subparts, please repost other questions for more…

Q: 28. Calculate the standard deviation of the following data: Age (Years) Under 10 30 40 50 60 70 80…

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Q: 9. The following data represents the number of tornadoes per year in Oklahoma from 1995 until 2004.…

A: As per Bartleby guideline expert have to answer first question three subparts only dear student…

Q: Find the standard deviation and coefficient of variation from the following data: Marks No. of…

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Q: Calculate Standard deviation from the following observation on a certain variable. 240.12, 240.13,…

A: We have given that,  Thee data set is, 240.12, 240.13, 240.15, 240.12, 240.17, 240.15, 240.17,…

Q: Calculate standard deviation from the following data. Marks Frequency | 6 0-10 10-20 20-30 30-40…

A: Class Interval Frequency, f Midpoint, x fx x2 fx2 0-10 6 5 30 25 150 10-20 8 15 120 225 1800…

Q: 5. In two factories A and B, the weekly wages and the standard deviations are given below : Factory…

A:

Q: The following data relate to the age of a group of Govt. employees. Calculate the arithmetic mean…

A: Class Frequency (f) Mid value (x) d=X-Ahd=X-37.55A=37.5  ,   h=5 f⋅d f⋅d2 20 - 25 170 22.5 -3…

Q: 3. The data on relative humidity (in %) for the first ten days of the month in a city are given…

A:

Q: . Calculate standard deviation from the following data : Marks: 12 14 16 18 20 22 24 No. of students…

A: Obtain the standard deviation of the data.   The standard deviation of the data is obtained below as…

Q: 1. Find the standard deviation for the following data:57, 64, 43, 67, 49, 59, 44, 47, 61, 59 (answer…

A: Given that  Observation: XX X^2X2 1 57 3249 2 64 4096 3 43 1849 4 67 4489 5 49 2401 6…

Q: 4. Calculate the mean deviation from the following data. What light does it throw on the social…

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Q: 3. A student obtained the following scores in twelve 100-item assignments: 86 94 97 90 98 85 95 97…

A: Standard deviation (σ) is defined as the square root of the variance. It measures the variability…

Q: Consider the following sample:     10   12   14   20   31   35   40   40   55    55    57    63…

A: Solution: From the given information, the mean is 47.1250 and standard deviation is 26.1938.

Q: 9. The mean July daily rainfall in Waterville is 10 mm and the standard deviation is 1.5 mm. Assume…

A: Consider a random variable X which represent that amount of daily rainfall in Waterville in the…

Q: Calculate standard deviation from the following data taking eviations from assumed mean 65: Harks :…

A: We have given that data  X Frequency 50 6 55 10 60 14 65 9 70 2 75 5 80 18…

Q: Find the value that is one standard deviation below the mean

A: We have given that the data are the distances between a sample of 20 retail stores and a large…

Q: Calculate mean deviation from the following data: Marks less than : 80 70 30 10 60 50 40 20 No. of…

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Q: Suppose the people living in a city have a mean score of 40 and a standard deviation of 7 n a…

A: We have given that  Mean=mu=40  Standard deviation=sigma=7

Q: 4. A travelling salesman checks the prices of gasoline in gas stations within his area of…

A: This is a problem of unclassed measure of data. Here we will use the general formula for standard…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

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Q: Calculate Standard deviation of the following data : No. of Employees : 10-19 20-29 30-39 40-49…

A: Given: No. of employees No of firms 10-19 6 20-29 11 30-39 14 40-49 6 50-59 3

Q: Suppose the test scores of 600 students are normally distributed with a mean of 76 and standard…

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Q: Calculate mean deviation from median from the following data : Marks less than No. of Students 80 70…

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Q: Find the value that is one standard deviation below the mean. (Round your answer to one decimal…

A: Given data,     29,30,37,40,58,67,68,69,76,81,84,95,96,96,99,106,112,127, 145,150          Mean…

Q: The following data pertaining to factory A and B are given. What is the combined monthly wage and…

A:

Q: 2. The following frequency distribution depicts the marks received by 50 students in the Statistics…

A: The provided information is Class  Frequency(f) Mid value (x) fx fx2 60-64 2 62 124 7688…

Q: 6.21. For two observations 'a' and 'b', show that standard deviation is half the disto between them.

A:

Q: Q 1-From the following data, calculate Standard Deviation marks 15 25 35 45 55 No. of student 10 20…

A: Given data is Marks No. of students 5 10 15 20 25 30 35 50 45 40 55 30

Q: Compute standard deviation and its coefficient from the following data: - -10 10-15 15-20 20-30 30-…

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Q: 4. Compute the average deviation on the data below Test scores X-Х bar Xi 57 60 65 70 78 s0 82 85…

A: 4. Formula for Average deviation is, Average deviation=∑x'n Where x'=x-x¯ x¯=∑xin  , n=10…

Q: Following are the 2009 earnings (in thousands of dollars) before taxes for all six employer of a…

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Q: Find the interquartile range and the Coefficient of quartile deviation from the followine data Marks…

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Q: Suppose a small paint manufacturing company has a daily production that is normally distributed with…

A:

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Solution: Let X be the e normally distributed with a mean, μ=116 and a standard deviation, σ = 14.…

Q: The following is a sample of sanitation scores for 20 cruise ships. 87 93 83 84 95 83 89 86 94 91 87…

A: Given data: 82, 83, 83, 83, 84, 85, 86, 86, 87, 87, 89, 91, 91, 93, 94, 94, 94, 95, 95, 97

Q: The following data are the distances between a sample of 20 retail stores and a large distribution…

A: The size of the observation is n = 20.

Q: 3. A student obtained the following scores in twelve 100-item assignments: 93 91 90 86 86 94 97 90…

A: Given a student obtained the following scores in twelve 100-item assignments.  The data is…

Q: = 26 : Calculate Standard deviation of the following data. No. of Employees : 10-19 No. of firms…

A: Here given grouped data with frequency  From given table calculation is on further step

Q: 4. A travelling salesman checks the prices of gasoline in gas stations within his area of…

A: a.What is the standard deviation? standard deviation =  Here mean is 49.93 and n=15 therefore…

Q: Suppose that the score in Mathematics exam is normally distributed with a mean of 20 and a standard…

A:

Q: Some studies show that the mean normal body temperature is actually somewhat lower than the commonly…

A:

Q: Assume a data set is normally distributed with mean 172 and standard deviation 15. If the data set…

A: The data set of 450 data values is given in the question which is normally distributed with mean 172…

Q: ANSWER ALL QUESTIONS. Table 1 Wages (RM) 250.00 - 259.99 260.00 - 269.99 Number of employees, f 10…

A:

Q: 5. The following values are the number of customers a restaurant served for lunch on ten consecutive…

A: Here, x (x-x) (x-x)2 46 -14.4 207.36 49 -11.4 129.96 51 -9.4 88.36 60 -0.4 0.16 63 2.6…

Q: The following is a frequency distribution of an entrance examination.             Class interval…

A: Solution 1) mean

Q: 3. The data on relative humidity (in %) for the first ten days of the month in a city are given…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2. The following frequency distribution gives the age distribution of drivers who were at fault in…

A: