c) What are the mean and standard deviation of the number of incorrect responses? (Give a reason)

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Q: a) In the analysis of a barrel of powder, the standard deviation of the sampling operation is ±4%…

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Q: 11. Chebyshev's Theorem states that the percentage of measurements in a data set that fall within…

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Q: What is the standard deviation of the following: 12, 47, 31, 18, 20, 35

A: Compute the mean of the data using the formula: x=∑ixin x=12+47+31+18+20+356  =1636  =27.1667

Q: What does Chebyshev’s rule say about the percentage of observations in any data set that lie within…

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Q: 2. Write a paragraph that explains why "the z-score associated with the raw score of r; (i.e., ) is…

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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

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Q: a. How many standard deviations away from the mean is a beetle with mandible length of .44 mm? b.…

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Q: 4.) Determine the range and Standard Deviation of the set of data 4, 8, 9, 11, 13, 15

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Q: 1. Find the Mean, Median, Mode, Variance and Standard Deviation for the following data: 25, 36, 28,…

A: Calculate Mean, Median, Mode, Sample Variance (S2), Sample Standard deviation (S) from the following…

Q: (d) What is the probability that the number of drivers will be within 2 standard deviations of the…

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Q: a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds?…

A: Here Given  Highest Speed measured=76.6 Mbps Sample Size=50 Sample mean=x¯=18.68 Sample sd= s= 37.17…

Q: 47 If the mean of a test score is 30 and the standard deviation is 3.7, which score could be…

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Q: what are the values for the SS, variance and standard deviation for the following sampleo of n =3…

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Q: 5. A statistics professor reported that the mean score in a recent quiz is 72 and the standard…

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Q: b) Suppose that in a random sample of 600 customers, 270 express satisfaction with the dealership.…

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Q: What is the standard deviation for the following set of N= 5 scores: 10, 10, 10, 10, and 10? (Note:…

A: Given data 10,10,10,10,10and N = 5Mean (μ) :  10+10+10+10+105μ = 505=10

Q: 7) Calculate the vari ence and the standard deviation for the following data 3. 4 Number of children…

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Q: What is the mean absolute deviation of the following set? {23, 24, 29, 30, 38, 48}

A: First we calculate the mean of the given data set then we calculate the distance of each element of…

Q: 2. A normally distributed set of 968 values has a standard deviation of 11 and a mean of 108. Which…

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Q: what is the mean and standard deviation of the following sample:  8, 1, 5, 1, 5

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Q: A positively skewed population has a mean of ? = 100 and a standard deviation of ? = 15. a. What is…

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Q: What is the standard deviation of the following: 43, 22, 48, 17, 29, 43

A:

Q: 4. The mean score of 100 BS Biology students on a 100-item chapter test is 92. midpoint method. What…

A: Midpoint Method  Mean = x¯=x1+x2+...+xnnwhere n - number of observationsx¯=∑fixii∑ifi Deviation…

Q: What does Chebyshev’s rule say about the percentage of observations in any data set that lie within…

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Q: Which test statistic will be used if the sample is 37? a. t-test b. z-test c. population mean d.…

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Q: 14) Find the score that separates the top 80% from the bottom 20% if the Mean is 100 and the…

A: Given information Mean (µ) = 100 Standard deviation (σ) = 26 The score that separates the top 80%…

Q: 4) Find the population standard deviation for the following scores: x = 2,45,2,6,3,2,9,10,11,34,64…

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Q: (c) What are the mean value and standard deviation of the number of voters who favor the ban? Mean…

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Q: In a statistics class, 10 scores were randomly selected, and the following results were obtained:…

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Q: What is the standard deviation of the following sample data:  24, 37, 31, 48, 19, 31.

A: Solution: x x^2 24 576 37 1369 31 961 48 2304 19 361 31 961 --- --- ∑x=190…

Q: 1.) Ten friends scored the following marks in their end-of-year math exam: 23%, 37%, 45%, 49%, 56%,…

A: Given 10 friends score percentages 23,37,45,49,56,63,63,70,72,82.

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Q: 10. Find mean deviation and its coefficient using by A.M. and Median. Values 31, 46, 47, 48, 52, 58,…

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Q: What is the standard deviation of the following: 35, 12, 46, 21, 29, 46

A: We have given data,  35, 12, 46, 21, 29, 46 Then,  We will find the standard deviation (s) = ?

Q: (ii) Compute the sample mean and sample standard deviation for the data.

A: Given A01 data set: A01 18.2 14.9 17.2 14.3 10.5 17.2 17.5 15.8 15.9 11.6…

Q: what is the mean absolute deviation? 6, 5, 7, 2, 4, 8

A: We will find the mean absolute deviation as following.

Q: i. What are the mean and standard deviation of the total amount of milk and flour in Jim's…

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Q: d) What is the standard deviation for the number of adult Americans out of the 20 we would expect to…

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Q: 15. The standard deviation of all possible sample means equals

A: Our Aim is to tell what is equals to the standard deviation of all possible sample means ?

Q: What is the standard deviation of the following: 48, 47, 43, 27, 16, 11

A: Standard deviation :   The standard deviation is the average amount of variability in your data set.…

Q: What is the standard deviation of the following sample of size n = 5?-3,5,8,10,12

A:

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)…