3. A student obtained the following scores in twelve 100-item assignments: 86 94 97 90 98 85 95 97 93 91 90 86 a. What is the standard deviation? b. What is the Mean Absolute Deviation? c. Based on the descriptive measures you obtained in item 1 and in this item what can you say about his scores in the assignment?

Q: Illustration : The mean and standard deviation of a set c 100 observations were 40 and 5 respective…

A: Mean is the average value of given observations. For a set of 'n' observations, mean is the sum of…

Q: Both sets of values have an average of 13. Is Set A's standard deviation smaller, larger, or about…

A: Given : Set A: 1 2 3 23 24 25 Set B: 9 10 11 14 16 18 Both sets of values have an average of 13

Q: The height, in inches, of each student in Megan's algebra class is shown. 72 72 71 70 70 70 69 67 66…

A: Solution: First find the all the measures without adding 77 into the given data. Given data is 72…

Q: Use the following data to answer the first two questions. The test scores for a sample of five…

A:

Q: Both sets of values have an average of 13. Is Set A's standard deviation smaller, larger, or about…

A: Given information- Average for both sets is (X-bar) = 13 To know which set has larger standard…

Q: Given are 3 observations for the monthly profits (in 1000s) for a group of small businesses.…

A: We have given that,  The data is,  28, 29, 22 Then,  We will find the standard deviation (s) = ?

Q: You are told that the mean for an exam was 73.29 with a standard deviation of 8.89.  Convert the…

A: Given that μ=73.29,σ=8.89 The z-score corresponding to 70.01 is, The z-score corresponding to 78.22…

Q: 1, the following is the 40 students test scores,please make the frequency table or histogram,and…

A: Given n=40 The data

Q: The 2000 U.S. Census also asked for each person's age. Suppose that a sample of 40o households taken…

A: Solution-: We have following table: Class Freq (fi) 0-20 32 21-40 16 41-60 13 61-80 10…

Q: Use the following data obtained from ages of the last six U. S. Presidents at the time of their…

A: Mean: The mean is the sum of observations divided by the number of observations. that is, Mean = x =…

Q: A sample consists of the following n = 5 scores: 10 4 3 7 3 Compute the mean and standard deviation…

A:

Q: The following set of data shows the scores of 25 students in a 100-item test in Philosophy. 46 64 72…

A: c) Here, x x-x (x-x)2 46 -28 784 49 -25 625 53 -21 441 60 -14 196 61 -13 169 64 -10…

Q: Given that the mean for a data set is 24.8 and the standard deviation is 2.3, find the z-score of…

A:

Q: Consider the following set of test scores for James and Rob in Chemistry. James 62 80 83 72 73 Rob…

A:

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

A: According to the descriptive measure the standard deviation is quite low for the scores of the 100…

Q: Use the following information to answer questions 13-25: The height of 14 students in a class is…

A: Standard Deviation: It is a statistical measure that measures the dispersion of the dataset from…

Q: The following data are the percentages of alcohol in five randomly selected brands of beer. Find the…

A: Given: Sample size n = 5 Formula Used: Population standard deviation  σ = ∑i=1n(Xi-X)2n Where X is a…

Q: The marks achieved by Aicheiah in Mathematics, Science, and English, together with the mean and the…

A: The given information is: Subject Mark Mean Standard deviation Mathematics 60 52…

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: 1. Using the formulas, compute the mean and standard deviation of this sample of scores.  45 58 63…

A:

Q: Monica believes that the number of email accounts a person has depends on what area of the country…

A:

Q: 5- calculate the Standard deviation of the following sub image.* 10 6 10 7 7 4 Your answer 4.

A: Given problem Given that   Steps to find Standard deviation :   i) Mean should be calculated by…

Q: The highway mileage (mpg) for a sample of 10 different models of a car company can be foun below. 29…

A: Given range is 25. standard deviation using range rule of thumb is ?

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

A:

Q: The following table presents the scores of students in Statistics examination Scores Frequency 30-39…

A: Obtain the value of the standard deviation of the scores. The value of the standard deviation of the…

Q: 19. What is the standard deviation, o, in the heights of tenth grade girls shown in the table below?…

A:

Q: You are given the following three pairs of image and corresponding object distances (1.01 mm,…

A:

Q: The variance of a sample of 169 observations equals 576. The standard deviation of the sample equals…

A: given  variance of sample = 576 we know that , sample standard deviation equals square root of…

Q: this assignment, round all answers (when necessary) to exactly three decimal places. The numbers of…

A: Solution

Q: Given the frequency table below of the students result in 25 point quiz. Compute its standard…

A:

Q: A B. 1 Doctor visits 0. 1 2. Frequency 7. 149 121 4. 5 54 4. 450 110 12 8. 12 6. 10 8. 14 11 6. 12…

A: From the provided information, A B Doctor visits Frequency 0 7 1 149 2…

Q: Given the frequency table below of the students result in 25 point quiz. Compute its standard…

A: Given: X Frequency 6 2 9 4 12 14 15 9 18 6 21 3 24 2

Q: The following are that scores of 20 students who took a calculus exam. Find the mean and standard…

A:

Q: find the range and standard deviation, round to two decimals places: The table below gives the…

A:

Q: The following are total cholesterol scores measured in 10 patients who are participating in a study…

A: The provided information is:Sample size (n)=10Consider X is a random variable defined as cholesterol…

Q: - Calculate the Quartile Deviation (Q.D) and coefficient of Q.D. for the data below: ( 230 , 620 ,…

A:

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: Given that the mean of a data set is 20, and the standard deviation of this data se is 8, then what…

A: Given data,μ=20σ=8x=40z=?

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

A:

Q: P(x) 0.186 1 0.362 0.295 3 0.128 0.027 4 5 0.002

A: From the provided information, The mean for the numbers of sleepwalkers in group of five can be…

Q: Suppose the people living in a city have a mean score of 35 and a standard deviation of 10 on a…

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…

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: A labor rights group wants to determine the mean salary of app-based drivers. If she knows that the…

A: Given that  Standard deviation =3.3 Margin of error =0.77 We have to find How many number of drivers…

Q: Six different  titrations are found to be 0.5018 0.5047 0.5062 0.5039 0.5056 0.5038.…

A: Given titrations are 0.5018, 0.5047, 0.5062, 0.5039, 0.5056, 0.5038 Arrange the titrations in…

Q: An instructor selected a sample of the following quiz scores(out of possible 10 points) for 12…

A: Given that, An instructor selected a sample of the following quiz scores(out of possible 10 points)…

Q: According to the Chebyshev Rule, at least 96% of all observations in any data set are contained…

A: Given Data: The percentage amount of data is: D%=96% From Chebyshev rule, The percentage amount of…

Q: . Compute Standard deviation from the following data 60 Marks 10 20 30 40 50 No. of students 20 7 3.…

A: Solution is given: Give data:

Q: calculate the standard deviation for the data in the table Range Frequency 1-10 11-20 7. 21-30 10…

A: We have to find the standard deviation.

Q: A certified mechanic was timed for the repair of an automobile on 14 separate occasions. Over the…

A: