4) Which of these samples would have the smallest standard deviation? a. 101, 92, 84, 131 b. -25, -10, -19, -3 с. 15, 9, 2, 21 d. 190, 187, 189, 192

Q: The standard deviation of the sample  1,1,1,2,3,3,3 is

A:

Q: Suppose that the sample dataset of July 1 temperatures consisted of 64 observations and that these…

A: given data standard deviation s = 4 sample size n = 64

Q: Find  Variance and Standard deviation for the following data.  4,  4,  7,  11,  14.

A: Given sample xi is:  4, 4, 7, 11, 14  Sample size, n = 5   Sample mean can be calculated as:…

Q: If in a data set the observation 78 has z-score equal -0.60 and the observation 88 has z- score…

A:

Q: 1. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager…

A: Formula : Z =(X - μ)/σ

Q: What is the standard deviation of the data (7, 1, 7, 10, 5, 3, 2}? O 2.7 O 3.0 5.0 O 9.0

A:

Q: 9. A sample of 25 observations has a standard deviation of 5. The sum of the squared deviations for…

A: The sum of the deviations from the mean is always equal to zero because the sum of the deviations…

Q: 8, and the sample standard deviation, s, is found to be 4.6. ...

A:

Q: Find the range and standard deviation of the set of data. 11, 10, 5, 12, 12 O

A: The detailed solution is as follows below:

Q: Compute the standard deviation of the sampled proportions if p=.4 and n=500. Round to three places.

A: We want to find standard deviation  X~Binomial(n=500,p=0.4)

Q: 6. Which of the following statistics may be obtained even if not all the values in the data are…

A: Given problem Given that   Which of the following statistics may be obtained even if not all the…

Q: 9. A sample of 25 observations has a standard deviation of 5. The sum of the squared deviations for…

A: To find: The sum of the squared deviations for all observations from the sample mean.

Q: Find the range and standard deviation of the set of data. 12, 8, 7, 11, 22 O

A: Given sample data is  12,8,7,11,22.

Q: Calculate the standard deviation of the following four observations: 12,13,15,20

A:

Q: A student obtained the mean and SD of 100 observations as 40 and 5.1 respectively. It was later…

A: The Variance formula of ungrouped data set is given by                     Variance σ2=∑xi-x2n…

Q: 2. Calculate the frequency mean, the frequency standard deviation, the median and the first and…

A: Given a grouped data set And said to calculate its frequency mean, frequency standard…

Q: If 10 were added to each of the values in a data set that originally had a standard deviation of 6,…

A:

Q: Find the range and standard deviation of the set of data.   10,9,6,12,18

A: The set of data 10,9,6,12,18

Q: Without the degrees of freedom, the standard deviation of population will be estimated:   Question…

A: We want to know Without degrees of freedom standard deviation of population is.

Q: The daily dinner bills in a local restaurant are normally distributed with a mean of $28 and a…

A: Given : Mean , μ = $28  Standard deviation , σ = $6 c. What are the minimum and maximum of the…

Q: If the salaries of BZU employees are normally distributed with mean of 800 JOD and standard…

A: Introduction :-  We have to find value( salary ) such that there are 10 % salaries below that value…

Q: A set of data is found to have a sample standard deviation of 25. Suppose 9 were added to each of…

A: Given: s=25 9 is added to each of the values.

Q: A population has a mean of μ = 50, a variance of σ2 = 9, and a standard deviation of σ = 3.  The…

A:

Q: A set of data items is normally distributed with a mean of 60. Convert the data item to a z -score,…

A: Solution: z-score for given data item is 1.

Q: If the average grade on an exam was 75% and the standard deviation was 4%, what would the three…

A: The mean is 75% and the standard deviation is 4%.

Q: A normel curve with a mean of 400 and a standard deviation of 50 is shon. Shade the rogion under the…

A: The mean is 400 and the standard deviation is 50.

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: Find the range and standard deviation of the set of data. 10, 8, 6, 13, 23 O

A: we first calculate the range of our data range = maximum-minimum=23-6=17range =17Mean=μ=sum of all…

Q: Find the range and standard deviation of the set of data. 12, 10, 5, 13, 15 O

A:

Q: Assume that the test scores from a college admissions test are normally distributed, with amean of…

A:

Q: If a population has a standard deviation σ , then the standard deviation of the mean of 100 randomly…

A:

Q: Calculate the mean, variance and standard deviation of the following SAMPLE of  observations: 5.1,…

A:

Q: Find the Range, Variance, and Standard Deviation for the given samples. 1. 3, 5, 2, 3,9 2. 12, 11,…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: de . Find the standard deviation of the observations 5, 11, 18, 25 and 41, using muill

A:

Q: calculate the standard deviation of the following four observations: 13,14,16,18

A:

Q: - If a population with µ =72 and o = 8, the distribution of z-scores will have a mean and standard…

A: Given: Mean = µ = 72 Standard deviation = σ = 8

Q: According to a Human Resources report, a worker in the industrial countries spends on average 419…

A: Solution

Q: Calculate  the range, variance , and stanard deviation for the following a.4,2,1,0,1…

A: Note: Since it is not mentioned in the question whether the given data belongs to population or…

Q: Assume that the test scores from a college admissions test are normally distributed, with amean of…

A: Hence,the percentage of the people taking the test score between 400 and 500 is…

Q: Find the range and standard deviation of the set of data. 10, 8, 7, 13, 17 -

A:

Q: 4. Find the mean and the standard deviation of the following data set: 12, 15, 12, 19, 21, 11, 13,…

A:

Q: The standard deviation of the sample 10, 10, 10, 10, 10  is

A:

Q: a distribution with a mean of u=41 and a standard deviation of 4 is transformed into a standardized…

A: Obtain the new score transformed value for x=39. The new score transformed value for x=39 is…

Q: Compute the standard deviation of the sampled proportions if p=.8 and n=50. Round to three places.

A: Given,n=50p=0.8

Q: Find the standard deviation for the group of data items (to the nearest hundredth)8,9,10,11,12

A:

Q: The three data sets have the same mean and range, but is the variation the same? Prove your answer…

A: For all the parts, it is given that, x=5+7+9+11+13+15+177=777=11

Q: The standard deviation of the dataset { 12, 7, 21, 5, 18 } is Select one: a. 6.88

A: Given data set, 12,7,21,5,18 Standard deviation is ?

Q: What is the population mean, population variance and population standard deviation of the given…

A: Mean = ΣXi/n = (160+150+165+180+175+172)/6 =167 Variance= ΣXi2/n -(mean2)…

Q: The standard deviation of a sample is 3.0 and the standard error is -16.52, what was the original…

A: