Mean Absolute Deviation Variance Standard Deviation

Q: A portfolio includes two assets. The portfolio's standard deviation equals to the weighted average…

A: Given data A portfolio includes two assets. The portfolio's standard deviation equals to the…

Q: andard deviation  44 Find the probability that randomly hit fly ball travels less than 258 feet…

A: Consider a random variable X which represents the height that the ball travels.  Since, nothing is…

Q: What is the only measure of central tendency that can be used with a nominal variable? standard…

A: Measure of central tendency is used to determine center of the distribution. It provides a summary…

Q: When the _ is calculated, the _ is calculated as an intermediate step.  a)variance; standard…

A: Variance is the sum of squared deviations divided by number of observations. Variance is calculated…

Q: Of alarge group of men. 5 percent are less than 60 inch in height and 40 present are between 60 and…

A: Given,  5 percent are less than 60 inch in height and 40 percent are between 60 and 65 inches.…

Q: A manufacturing process produces a critical part of average length 80 ​millimeters, with a standard…

A: According to the given information, parts with lengths less than μ-5 will be rejected, and parts…

Q: (j) Mean Absolute Deviation (k) Variance (l) Standard Deviation

A: Mean : Mean , X¯ =…

Q: A. Coefficient of Variation In a barangay health center in Metro Manila with no more than a hundred…

A:

Q: variance, and standard deviation

A: From the given sample data : n=9 , ƩX=55  , ƩX2=397 Our aim is to find the sample variance and…

Q: What does an outlier do to the standard deviation? Increases the standard deviation Decreases the…

A: The options (2) and (3) are incorrect . Reason for option (2):  The outliers are decreases the…

Q: POPULATION MEAN POPULATION VARIANCE XX - a) POPULATION STANDARD DEVIATION E(x-)

A:

Q: Mean =. Variance = Standard Deviation = , a. What kind of information or data should be obtained to…

A: Given information:-   Player A Player B x P(x) x*P(x) x-μ2·P(x) x P(x) x*P(x) x-μ2·P(x)…

Q: Mean Absolute Deviation Is the mean absolute deviation of a sample a good statistic for estimating…

A: If the statistic targets the corresponding population then the statistic is said to be a good for…

Q: As the sample size increases, the A) standard error of the mean decreases B) population mean…

A: As the sample size increases, the standard error of the mean decreases

Q: what is mean and the standard deviation?

A: As per the company guidelines we are supposed to solve first question. Kindly post the other…

Q: Mean Variance Standard deviation

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Q: f 2 2 3

A: This is statistics problem

Q: Confidence intervals on the variance is very sensitive on the normality of the data while the…

A: Here use basic for confidence interval of variance

Q: of the distribution. One Z-score unit is equivalent to the variance the range O the standard…

A: A z-score is the standard score that determines how much the data point deviates from the population…

Q: i) expected return for Lilac ordinary share ii) Standard deviation of return for lilac ordinary…

A: Given that Let X denotes the return corresponding to the state of the economy. So, P(X=x) denotes…

Q: Required: • Mean, Standard Deviation and Variance

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Q: Coefficient of variation is ascertained by: a. Standard Deviation/Mean X 100 b. Mean/Standard…

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Q: Find the range variance standard deviation of the frequency distribution

A: Given data is Class Interval Frequency Class Boundaries class Mark c.f 16-22 11 15.5-22.5 19 11…

Q: A measure of variation that makes use of all the scores in a distribution. * Choose MEDIAN MODE MEAN…

A:

Q: Mean difference= Standard deviation of the difference Standard error of the mean difference = Test…

A: Here AS PER POLICY I SHOULD HAVE TO CALCULATE 3 SUBPART EVEN THOUGH I HAVE CALCULATED MORE Here from…

Q: Which one is not measuring the degree to which the scores in a distribution are spread out or…

A: Variance is a measure of dispersion. It measures how far each observation falls from the mean of the…

Q: Calculate the Mean Calculate the Variance Calculate the Standard Deviation

A: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have solved…

Q: Relative Dispersion can be calculated by     dividing absolute dispersion with average…

A: The spread of the data is measured by the relative dispersion. The relative measures of dispersion…

Q: Distribution of College Algebra Course Grades What is the mean of this normal distribution? What is…

A: Mean of the normal distribution is where the peak is present and about what point, the curve is…

Q: Forced expiratory volume (FEV) is an index of pulmonary function that measures the volume of air…

A: Given Information: Non-smoking men: Mean μ=4.1 Standard deviation σ=0.5   Smoking men: Mean μ=3.9…

Q: Midrange: Range: Standard Deviation:

A: We know that.  Midrange = (maximum + minimum)/2 Range = maximum- minimum

Q: deviation of 4 cm. Find the percentage of boys and girls in the class and the standard deviation of…

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Q: standard deviation and the sample variance.

A: Given that, 120 113 85 59 223 154 180 156 112

Q: ta distribution es normal, then it is not possible to randomly select a value that is more than 4…

A: Given that  The distribution is normal. Is it possible to randomly select a value that is more than…

Q: Standard Deviation = 5.38: Calculate the variance

A: Given that Standard Deviation = 5.38  Since we know that  Standard deviation = √variance Or variance…

Q: Normal distribution mean=0 standard deviation =1 p(z<-0.21)

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Q: The standard deviation of a normal distribution is 0 0.5 1 mu sigma sigma squared The variance…

A: Normal Distribution: If the distribution is bell shaped, then it is defined as normal distribution.…

Q: 8. Cholesterol levels for males aged 50 have a mean of 210 and standard deviation of 22.8. Use the…

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Q: Chi-squared distribution

A: Correct answer: Normal Quantile-Quantile plot

Q: Mean and standard deviation

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Q: In a  normal distribution ,Average mean =225  St deviation = 40  Find percentage  between 145  and…

A: From the provided information, Mean (µ) = 225 Standard deviation (σ) = 40 X~N (225, 40)

Q: A normal distribution has a mean of 15 and a standard deviation of 2. Find the value that…

A: The mean is 15, and standard deviation is 2. That is, μ=15,σ=2. Let x be the value that corresponds…

Q: ifferentiate Mode from Standard Deviation. What is their similarities and differences? (Essay form)

A: Mode is a measure of Central tendency whereas Standard Deviation is a measure of Dispersion. Let us…

Q: Range and Standard Deviation of the set of data

A: Given : n=10 , ƩX=830 ,  ƩX2=70000 , largest observation=100 , smallest observation=65 We want to…

Q: large value of the standard deviation for a data set indicates hat the values of that data set are…

A: A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low…

Q: median: range : interquartile range : mean absolute deviation: normal distribution : Z-score : stem…

A: Answer:-  Median: The median is the middle number in a sorted ascending or descending order. If…

Q: Similarities and differences of Sample Standard Deviation and Sample Mean

A: Sample mean: average of data set.Find by dividing the sum of observation by total number of…

Q: Mean of sampling distribution of means Standard deviation of the sampling distribution of means

A: We have given that data  3 ,7, 11 , 15 Sample size n =4 I want to find standard deviation of the…

Q: The heights of a certain population follow a normal distribution with mean of 165cm and standard…

A: Given :  Mean = μ = 165 cm  Standard deviation = σ = 10 cm  Let, X denote heights of a certain…

Q: How to find the standard deviation and how do you find the variance

A: Introduction: Consider a set of n observations take values x­1, x2, … xn. The sample mean of these n…