Describe Normal and Chi-Square Distributions?

Q: An economics professor decides to curve the grades of his class. In doing so, he decides to make it…

A: Given data: An economics professor decides to curve the grades of his class. In doing so, he decides…

Q: standard deviation of the mean,

A: The given readings are taken with meter strings of the length of the cylinder we know  Standard…

Q: If X follows standard normal distribution then the standard deviation of X equals

A:

Q: Provide 2 examples or situatuons depicting normal distributions. Explain each situatuon

A: A normal distribution is a type of continuous distribution where most of the data lie in the center…

Q: Page 1 Page 2 Standard Normal Distribution

A: Given Data population proportion,p = 0.88 sample size n = 100

Q: To calculate normal distributions values must be?

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: What is the standard deviation (spread from mean) of the dot plot?

A: Introduction: Taking the mean of the data points, removing the mean from each data point separately,…

Q: Areas under the normal curve are positive values. True or False

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Q: Explain the difference between binomial and normal distribution

A: It is asked to tell the difference between the binomial and normal distribution

Q: The top 10% of a normal distribution is above what z-score?

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Q: The standard deviation of the certain distribution is 9, what is its variance?

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: What are the Properties of the Normal Curve?

A: A normal curve is identified using the values of the mean and standard deviation to show the…

Q: mean=32, population standard deviation=7, normal distribution, to find value of less then…

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Q: Demonstrate that one standard deviation around the mean includes 68% of the area under the normal…

A: Here , we want to demonstrate that one standard deviation around the mean includes 68% of thearea…

Q: (a). Discuss Uniform, exponential and Normal Distribution. Also discuss their characteristics.

A: Uniform distribution, exponential and normal are all continuous probability distribution.

Q: Distinguish Standard Deviation from Mode

A: Given problem Given that

Q: Describe about the Properties of the Normal Curve?

A: A normal curve is identified using the values of the mean and standard deviation to show the…

Q: What describes measurements that have a normal distribution?

A: The farther away you move from the average, the fewer individuals will have those more extreme…

Q: Compute the Average Deviation.

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Q: Describe about the Different Normal Curves?

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Q: Why is the standard deviation important. Give specific examples.

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Q: Why is the standard normal curve sometimes referred to as the z-curve?

A: In this case, we need to explain the reason for the standard normal curve, which is sometimes…

Q: Find the mean deviation about mean of rectangular distribution,

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Q: Find mean and standard deviation of a 'Standardized normal variable'.

A: The pdf of standard normal variable is, f(z)=12πe-z22 ;-∞<z<∞ Standard normal variate: Z=x-μσ

Q: a normal distribution has a mean 20 and standard deviation 5. what is the z score that corresponds…

A: A normal distribution has a mean=20, standard deviation =5.

Q: ular steel plate used in constructions has a normal distribution with a mean

A: Given: μ=80, σ=9 The corresponding z-value needed to be computed:

Q: What is the area under each curve of chi-Square distribution? Explain.

A: The distribution of the chi-square statistic is called the chi-square distribution. The chi-square…

Q: What are the characteristics of a normal distribution? What two characteristics make a distribution…

A: Given that  What are the characteristics of a normal distribution?   What two characteristics make a…

Q: What proportion of the data from a standard normal distribution has a value between 0.13 and 0.63?…

A: GivenThe value between 0.13 and 0.63 is

Q: Define Concept of Distribution of β^1 with Normal Errors?

A: Introduction: The multiple linear regression equation of the response variable, y, on k predictor…

Q: Derive mean and variance of normal distribution.

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Q: Describe what actually histograms show in distributions in operations ?

A: Introduction - Graphical methods in statistics These methods are useful aids to portray the results…

Q: a. Reflect how normal distribution will be useful in your field? Give an application related to…

A: Normal distribution is one of the very important tools used in statistics. It helps to determine…

Q: Assume that a normal distribution of data has a mean of 16 and a standard deviation of 4 Use the…

A: Given X is normal Distributed with mean µ = 16.0 and standard deviation σ = 4.0 now will using…

Q: Why is it that the “COVID curve” cannot be considered as a normal distribution?

A: COVID Curve cannot be considered as a normal distribution due to the following reasons:

Q: In a normal distribution, what percentage of the population lies with-in 1 standard deviation of the…

A: In a normal distribution, there are predefined percentage of the population which lies in 1 standard…

Q: What is the difference between Gamma distribution and Chi-Squared Distribution

A: What is the difference between Gamma distribution and Chi-Squared Distribution

Q: A normal-shaped distribution with μ = 40 and σ = 8 is transformed into z-scores. Describe the shape,…

A: Normal distribution has a curve with bell shape which is centred at the mean of the distribution.…

Q: What is normal distribution?

A: The normal distribution: A continuous random variable X is said to follow normal distribution with…

Q: Define mean absolute deviation?

A: The mean absolute deviation is a measure of descriptive statistics. Here the words "mean" and…

Q: Is there a way to transform this histogram into a Normal Distribution?  I have done inverse and…

A: We can use power transformations in order to transform the data into normal distribution taking the…

Q: Show that Quartile deviation of normal distribution is approximately 3

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Q: Do the width and/or height of a normal distribution change when its standard deviation remains the…

A: Normal Distribution : It is also called as Gaussian distribution, is a probability distribution…

Q: What are the characteristics of a normal distribution?

A: Normal distribution- It is a frequency distribution curve. It is also called bell shaped curve. In…

Q: The red blood cell counts (in millions of cells per microliter) for a population of adult males can…

A: From the given information, μ=5.4, SD=0.4 a. The required minimum red blood cell count that can be…

Q: What proportion of the data from a standard normal distribution has a value between 0.38 and 0.53?…

A: To find: What proportion of the data from a standard normal distribution has a value between 0.38…

Q: how to find outlier from data in normal distribution ?

A: Solution: From the given information, the distribution is normal.

Q: Find the probability that a normal variable takes on values more than standard deviations away from…

A: Let us assume that, mean of the distribution = µ Standard Deviation = σ To find the probability…