3. Given the sample variance of a distribution, explain how to find the standard deviation.
Q: 5. Thirty-two percent of adult Internet users have purchased products or services online. For a…
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Q: Find the sample variance and sample standard deviation for the sample data 21,17,13,25,9,19,6 and 10
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Q: The standard deviation of the sample 1,1,1,2,3,3,3 is
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Q: What is the Sample variance and standard deviation? 23 12 6 9 10
A: Form the provided data we have the mean as, Mean = x¯=∑ixin =23+12+6+9+105…
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: For the set of scores 5,10,10,15,25 calulate the mean, median,mode,range variance, and standard…
A: We have given that data 5,10,10,15,25 Mean = sum of all observations/total number of observations…
Q: In a distribution exactly normal, 7% of the items are under 35 and 89% are under 63. What are the…
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Q: Here is a sample of scores: 6, 8, 5, 1, 3, 7, 7, 10, 9, 4 A) What is the variance? B) What is…
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Q: In a normal distribution, 11% of the items are under 35 and 76% are under 83. Find the mean and…
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Q: Suppose you add 2 days to each datum in the duration of hospital stay. a. What is the effect on the…
A: Adding any term in every observation of the data change the median. If we add 2 then 2 will be…
Q: 1. Determine the Range, Standard Deviation, and Variance of the height in inches of the 30…
A: Here use formula of standard deviation, variance and range
Q: Find the population variance and standard deviation 6, 15, 27, 33, 39
A: Here, the sample size, n is 5. The mean is calculated below.
Q: If the variance of a national accounting examination is 900, how large a sample is needed to…
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Q: Given that the mean of a set of data is 40 and the standard deviation is 2, what is the coefficient…
A: Given,standard deviation(σ)=2mean(μ)=40
Q: Find the standard deviation for the given sample data. given: 3,4,6,3,4
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Q: the mean and standard deviation of a population are 200 and 20 respectively. suppose the sample size…
A: Given data,μ=200σ=20If n=36the mean of the sampling distribution=?
Q: Consider the following distribution of scores: 2,5,3,7,6,5. What is the mean?
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Q: What does Chebyshev’s rule say about the percentage of observations in any data set that lie within…
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Q: The number of hours worked per week for a sample of ten students is shown below. Student Hours 1 2…
A: Note- As per our policy we can answer the first 3 sub-parts of a question. Given information- The…
Q: what is the mean and standard deviation of the following sample: 10, 1, 2, 5, 9, 7, 2, 4
A: Mean and standard deviation of the sample:Mean is the measure of central value of the data set and…
Q: what is the mean and standard deviation of the following sample: 8, 1, 5, 1, 5
A: From the given information, X= {8, 1, 5, 1, 5}Mean and standard deviation of the sample can be…
Q: What is the variance of the following population of scores? scores: 5,2,5,4
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Q: In a normal distribution, about what percent of the data lies within one, two, and three standard…
A: We have to determine the percentage between (mean - SD, mean + SD), (mean - 2SD, mean + 2SD) and…
Q: A history class has 75 members. If there is a 12% absentee rate per class meeting, find the mean,…
A: It is given that n is 75 and p is 0.12.
Q: 3. Find the mean, median, mode, and Standard deviation of the following data: 15, 11, 18, 9, 15, 18,…
A: The mean can be calculated as follows:
Q: Use a formula to find the standard deviation of the sample 1, 4, 5, 6.
A: We have given that, The data set of the sample is, 1, 4, 5, 6 Then, We will find the standard…
Q: Suppose a population has three values 13, 17 and 24. What is the standard deviation of the sampling…
A: Given, Population values are 13, 17 and 24. Samples are drawn without replacement.
Q: For a perfectly symmetrical distribution with a median of 30, what is the value of the mean?
A: It is given that the distribution is perfectly symmetric and the median is 30.
Q: For a moderately skewed distribution, the arithmetic mean is 100 and the coefficient of variation is…
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Q: Find the sample variance and standard deviation. 19, 13, 2, 9, 11 O
A: 19 361 13 169 2 4 9 81 11 121
Q: what is the mean and standard deviation of the following sample: 18, 1, 5, 1, 5
A: Solution:The mean is obtained below:The sample mean is 6.
Q: If three coins are tossed, what are the mean, variance, and standard deviation of the number of…
A: Let X denote the number of heads in tossing three coins. Let p denote the probability of getting the…
Q: Suppose that the amount of sleep college students get per night has a symmetric, bell shaped…
A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…
Q: Given a distribution with a mean of 80 and a standard deviation of 10, what is the probability of a…
A: Given that Mean=80 , Standard deviation=10 Find P(X<=65)
Q: Find the sample variance and sample standard deviation for the sample data 21, 17, 13, 25, 9, 19, 6…
A: Here, x x-x (x-x)2 21 6 36 17 2 4 13 -2 4 25 10 100 9 -6 36 19 4 16 6 -9 81 10 -5…
Q: 7. A set of data has a variance of 81. What is the standard deviation?
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Q: Find the standard deviation for the given sample data. 2, 5, 9, 13, 17, 20
A: Solution-: We find the standard deviation of the given data
Q: If you have a sample of n=25, what is the standard error if the population standard deviation is σ =…
A: The standard error of the sampling distribution of the sample mean.
Q: 4. The variance of a data set is 3410.56. Find the standard deviation for the data set.
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Q: The standard deviation of the sample 10, 10, 10, 10, 10 is
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Q: Determine the point estimate, p and the sample standard deviation, S5.
A: here n = 439 x= 162 here x= no of students working full time while going to school
Q: hospital stay
A: Mean: It represents the average of the given collection of data. Median: Generally median represents…
Q: Find the sample standard deviation for the following scores: x = 2,45,2,6,3,2,9,10,11,34,64
A: The random variable is x. The sample size is 11. It is given that, the sample size of 11…
Q: Given that the mean of a set of data is 25 and the standard deviation is 3, what is the coefficient…
A: Given: Mean = 25 Standard deviation = 3
Q: Explain term refers to the standard deviation of the sampling distribution?
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Q: What is the standard deviation for the data given: 12, 18, 16, 22 Select one: а. 17.33 b. 13 c. VT3
A: Solution : Given data is :12,18,16,22 x¯=∑xin=12+18+16+224=17
Q: Compute for the mean, the variance and standard deviation of this frequency distribution. Score…
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Q: Suppose you have a distribution with a mean equal to 100, median equal to 75, and mode equal to 50.…
A: Given that Mean =100 Median =75 And Mode=50
Q: Find the population variance and standard deviation. 10, 13, 17, 19, 21
A: Answer: Observation total = ∑Xi = 80 n=5 Mean=X =∑Xin =805=16 Varience=∑Xi2n - X2=13605-162 =16
Q: Find the population variance and standard deviation. 6, 12, 20, 24, 28
A: Given data set is6,12,20,24,28
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