The upper 50% of the data on this graph is within how many standard deviations from the mean? Distribution of Diastolic Blood Pressure 160 140 120 100 80 60 40 20 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 Age Frequency (in thousands)

Q: Calculate coefficient of quartile deviation and coefficient of variation from the following data…

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Q: . Calculate standard deviation and coefficient of variation from the data given below: Mid-points :…

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Q: 2. We are given data 124 ; 58 ; 215 ; 123 ; 79 ; 68 ; 82 ; 130 ; 128 ; 150 132 ; 69 ; 132 ; 115 ;…

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Q: A publisher receives a copy of a 500-page textbook from a printer. The page proofs are carefully…

A: Number of errors(x) Number of pages(f) fx x-x¯ x-x¯2 fx-x¯2 0 102 0 -1.654 2.7357 279.0414 1 138…

Q: Professor Pete's calculus class has the following scores: 19 21 31 32 37 45 52 55 62 63 63 65 65 77…

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Q: Calculate the arithmetic mean and standard deviation from the following data : Value Frequeucy. 14…

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Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: Given data: Sample of 24 children

Q: The grades for 30 students on the most recent exam are given in the data table below: 90 60 60 80 90…

A: Median is the middle most value. For a set of n observations, x1, x2, ... , xn with frequencies f1,…

Q: Match the histograms on the right to the summary statistics given. Standard Mean Median Deviation 50…

A: Clearly form the Histograms, we can conclude that I - a II - b III - c IV - d

Q: What is the minimum percentage of data values that will come within 3.5 standard deviations from the…

A: Here, standard deviation = k = 3.5

Q: 20 40 60 80 100

A: The above graph is approximately normal. So, for mean we see that where there is symmetry about the…

Q: In a certain population, let us assume that IQ scores are normally distributed with mean of 100 and…

A: A percentile is a comparison score between a specified score and the scores of the remaining data…

Q: Match the histograms on the right to the summary statistics given. Standard Mean Median Deviation 53…

A: Histogram : A bar graph may be a graphical illustration that divides a group of information points…

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: The grades for 30 students on the most recent exam are given in the data table below: Round your…

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Q: In my homework assignment, I have a concern about standard deviation do I have to round it to two…

A: Rounding-off must always be done as per the instruction in the  question. In the absence of an…

Q: According to Chebyshev's rule, within 10 standard deviations from the mean, lies at least_ data of…

A: According to Chebyshev's rule, within 10 standard deviations from mean, lies at least 99% of the…

Q: Value | Frequency 27 96 58 3 54 4 18 7

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Q: For a project, Fay kept track of the total annual amount of precipitation in inches for two cities…

A: Mean is the type of average that can be computed mathematically. Standard deviation is the method of…

Q: Compute for the population mean, population variance and population standard deviation. The IQ of 8…

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Q: This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation.…

A: Number of samples (n) = 7 X 48.3 29.6 16.8 42.9 41.4 13.2 29.5

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

A: Given Data in ascending order : Age groups Number of employees (f) 20-25 170 25-30 110…

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: Calculate the mean and standard deviation for the following distribution : *: 25 35 45 55 65 75 85…

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Q: he following data are distances between 20 retail stores and a large distribution center. The…

A: Standard deviation: The standard deviation indicates by how much each observation differs from a…

Q: What is the percentile rank for a raw score of 85 if the mean is 93 and the standard deviation is…

A: Given information Population mean µ = 93 Standard deviation σ = 15 We have to determine the…

Q: consider the data given and find standard deviation below Scores Comulative frequency o- 4 5-9 4 10…

A: Given data is scores cumulative frequency 0-4 1 5-9 4 10-14 12 15-19 21 20-24 30…

Q: A set of quiz scores is shown in the histogram below. The mean of the data set is 50.7, and the…

A: The histogram of quiz scores is given.

Q: This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation.…

A: Number of samples (n) = 7 X 16.2 33.3 15.4 25 32.4 20.5 31.6

Q: The following data represents the age of 24 IQ scores. 81  82  83  90  91  95  95  95  100…

A: Given Information:

Q: Find the mean, median, and mode of the following data. If necessary, round to one more decimal place…

A: We have to arrange data in ascending order:…

Q: At a fishery, the largest catches in August were of blackfin tuna, sailfish, blue marlin, and king…

A: Given Blackfin tuna  SD=2.61  Sailfish  SD=4.61 Blue marlin  SD=1.97 King mackerel SD=6.67

Q: The table displays the scores of students on a recent exam. Find the mean scores to the nearest…

A: objective is to find the mean.

Q: Find Mean Deviation and its Coefficient from Median from the following data : Classes: 0-10 10-20…

A: Dispersion is used to measure the spread of data from the individual values from the measure of…

Q: 1. Find Mean, Standard Deviation, Third quantile, 21st Percentile, and 87th Percentile for the data…

A: Given: Population size N = 8 Formula Used: Mean X = 1N∑i=1nXi Standard deviation σ = ∑Xi-X2N Third…

Q: The following data list ages of cars (in years) and monthly repair cost. What is the standard…

A: The regression analysis is conducted using EXCEL. The software procedure is given below: Enter the…

Q: Find the mean and standard deviation for the individualized instruction scores. Scores…

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Q: Click the score that is two standard deviations above the mean. IQ Test Scores 30 40 50 60 70 80 90…

A:

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 number of cybercrime recorded by an Investigation Agency for a 14-day period is shown. Compute…

A: Arrange the given data in ascending order23, 39,42,42,44,46,49,50,51,55,56,62,65,66sample size(n)=14

Q: Recently, a random sample of 25–34 year olds was asked, "How much do you currently have in savings,…

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Q: Calculate the mean deviation and its coefficient both from mean and median for the following. Marks:…

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Q: For the given speed information in the table below, find the standard deviation ?and the 85th…

A: Given data, Speed class Frequency 36-39.9 3 40-43.9 7 44-47.9 9 48-51.9 15 52-55.9 13…

Q: For the data from a sample shown below, answer the questions. Round to 2 decimal places. 26.4 29.3…

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Q: For the data shown, answer the questions. Round to 2 decimal places. 27.8 24.3 22 9.3 28.2 27.2 3.1…

A: Mean = 21.28

Q: The grades for 30 students on the most recent exam are given in the data table below: Round your…

A: Given data, 60 80 70 70 80     90 80 70 80 80     60 70 70 70 70     90 70 70 80 90…

Q: For the data shown, answer the questions. Round to 2 decimal places. 12.9 19.6 4 24.7 8.6 26.6 11.2…

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Q: Find the median and meản deviation of the following data : Size Frequency Şize Frequency 0-10 7…

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Q: The following table displays the ages of female actors when they starred in their award-winning…

A: Solution: Let X be the age of female actor. The given data is 40, 42, 34, 33, 30, 28, 30, 34, 31,…