Suppose a population is unimodal and symmetric with mean 55 and standard deviation 7.  a. approximately what percent of observations are below 34? b. approximately what percent of observations are above 55? c. approximately what percent of observations are between 41 and 62? d. approximately what percent of observations are above 48?

Q: Find the mean and standard deviation of the following sample taken from a larger data set of lengths…

A: Given data, x 12 Inches 40 Centimeters 1.5 feet 15 inches 35 centimeters 1.25 feet…

Q: If the Stanford-Binet IQ test is a normal curve with mean of 100 and standard deviation of 20, what…

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Q: How many observations would fall beyond two sample standard deviations below and above the sample…

A: We know that , If observations of data is 2 standard deviation  below the mean then we will have…

Q: Consider the data set {6,3, 2, 9, 3}. What is the population standard deviation for this set? Round…

A:

Q: Consider the following data and calculate the standard deviation. 6.24,  6.21,  6.24,  6.28

A: The mean is, μ=∑XN=6.24+6.21+6.24+6.284=24.974=6.2425 The mean is 6.2425.

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9, 4, 7, 1, 4.

A: Considering the scores as population. The population mean is, μ=∑XN=9+4+7+1+45=255=5 Thus, the…

Q: based on the data set below , what is the standard deviation? 25      27      31      33      26…

A: The given data is, 25, 27, 31, 33, 26, 28, 38, 41, 24, 32, 35 and 40. Mean: Thus, the mean is…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9,4,7,1,4.

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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: Calculate the sample standard deviation of the data shown. Round to two 17 22 25 15 19 13 24 sample…

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Q: The following sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5.a. What is the…

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Q: find quartile deviation for given data  15,56,89,74,56,32,21,45,96,77,32,3,48,56,75

A:

Q: From the following data : 23,25,41,29,50,36,37,44,30,35. Find the: Median…

A: 1. The Median is the middle number in the data set. Median for odd = n+12thvalue Median for even =…

Q: 5. If a population has a standard deviation of 16, what is the minimum number of samples that need…

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Q: Using the ungrouped find the following | Quartile deviation, Average deviation, Standard deviation.…

A: Descriptive statistics can be used for explanatory data analysis purposes. It give a basic idea…

Q: (a) How many reams should the manager expect to use each day? (b) What is the standard deviation of…

A: here given Discrete probability Distribution of X  X=  no of reams of paper Used

Q: given the following hourly wages 3, 2, 10, calculate the following: arithmetic mean median mode…

A: Given data3, 2, 10Arithmetic mean  The arithmetic mean (also called the mean) is the most commonly…

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: Given the following sample data set, find the mean, median, mode, and standard deviation. 12 21 17…

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Q: 00 ce, and standard deviation of the sample data set. PrtScn Home

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Q: If the mean of a given dataset is 131 and the standard deviation is 8, where will a majority of the…

A: NOTE: Refresh your page if you can't see any equations. . here mean of the data set is and the…

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: A sports shop records the sales of items made in India and those made in Australia. Country of…

A: The standard deviation is the measure of variability from individual data values to the mean and…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

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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: With a sample of 62, a population mean of 29, and a standard deviation of 9, what is the standard…

A: Givensample size(n)=62population mean(μ)=29standard deviation(σ)=9

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 116 and a standard…

A:

Q: What is the standard "z" value corresponding to the sample mean 90 in a distribution with population…

A: Option C is correct. Given

Q: 1. The standard deviation provides an overall measurement of how much participants' scores differ…

A: Given data: The standard deviation provides an overall measurement of how much participants' scores…

Q: What is the standard deviation of the following sample data? 38,27,39,29,41,42

A:

Q: Calculate both the sample and the population standard deviations using the data below. 26 1 19 13|…

A: Solution: x x^2 26 676 1 1 19 361 13 169 21 441 24 576 7 49 --- --- ∑x=111…

Q: The following data represent the number of people aged 25 to 64 years covered by health insurance​…

A: The provided frequency distribution is: Age Number 25-34 20.8 35-44 31.9 45-54…

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 144 and a standard…

A:

Q: Suppose a population is known to be normally distributed with a mean, u, equal to 144 and a standard…

A: In question,  Given that, a population is normally distributed with mean 144 and standard deviation…

Q: The mean annual wage per employee for each state and the District of Columbia for the year 2009 is…

A: The mean annual wage per employee for each state and the District of Columbia for the year 2009 is,…

Q: Given that a data set has a mean of μ=32.7 and a standard deviation of σ=1.8, find the percent of…

A: As per company guidelines I solved exactly three subparts of the question.thank you

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: From the provided information, Mean (µ) = 144 Standard deviation (σ) = 27 X~N (144, 27)

Q: In the given graph, What is the mean and standard deviation?

A:

Q: Given forecast errors of -5, 8, 8, and -3, what is the mean absolute deviation? O 2 O 4 6

A: The mean absolute deviation is obtained below: The given forecast error is -5, 8, 8 and -3. Let  E…

Q: within 3 standard deviations of

A: A) The Empirical Rule states that 99.7% of data observed following a normal distribution lies within…

Q: The following data represent the number of people aged 25 to 64 years covered by health insurance​…

A: The following table gives the data set with the required calculations:

Q: A guidance counselor wishes to determine the mean number of changes in academic major by college…

A: Given that, Standard deviation = 0.45 90% confidence level

Q: Given n=10 measurements: 13, 15, 14, 16, 20, 15, 16, 19, 12, 18 The standard deviation is

A:

Q: Assuming that the heights of college women are normally distributed with mean 62 inches and standard…

A: If Xis a normal variate with mean=μ, S.D=σ, then Z=x-μσ is a standard normal variate. That is, If…

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: The standard deviation of the following data set 17, 13, 13, 22, 11, 20 is approximately :: 4 : 5 :…

A: Find the standard deviation.

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: The following data represent the number of people aged 25 to 64 years covered by health insurance​…

A:

Q: Assuming the sample mean and standard deviation are indicative of the class as a whole, in what…

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Q: • - Find the mean deviation for the following data set {7,23,11,44,46,23,28,30,32,43,47}

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.