What is the mean and variance of the wavelength distribution for this radiation

Q: What are the merits of harmonic mean?

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Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: what is the difference of fractile and quantile

A: Difference between fractile and quantile:

Q: panies supply a this material is important. The mean concentration for both suppliers is the same,…

A: Given Level of significance=0.05 S1=4.7 S2=5.8 n1=10 n2=16

Q: In humans, the presence of freckles is a dominant trait and their absence is a recessive trait. The…

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Q: After collecting data on yield per acre two different kinds of potato grown on Long Island you plot…

A: From a frequency distribution of a graph one can infer regarding the skewness of the variable. If…

Q: If the dispersion is small the, the standard deviation is........?

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Q: Assume thAt scores on a standardized test are known to follow a bell shaped distribution with a mean…

A: L

Q: Distinguish Conditional Variance from Conditional Mean

A: Conditional Expectation: The conditional expectation or conditional mean of  random variable is the…

Q: 40 randomly selected men were chose weight of a man and his BMI (Body Mass Index). soterpet of Rt v…

A: We have to find correct answer..

Q: I am having trouble with Frequency Distribution and the whole process. Would you help please?

A: Frequency informs you how frequently something has occurred. The frequency of an observation informs…

Q: Question I: Use the frequency distribution in part D to estimate the sample mean and sample standard…

A: Arrange the given data set in ascending order: 15, 15, 15, 15, 30, 30, 30, 30, 30, 30, 30, 30, 30,…

Q: If X ~B(190,0.34), find mean and variance of x. (Rounded in 3dp.)

A: X ~B(190,0.34) Given a Binomial Distribution X ~B(n,p) Here, n = 190 , p = 0.34

Q: A university president believes that, over the past few years, the average age of students attending…

A: Given that: Sample size, n=20 Sample mean, x¯=25 Population mean, μ=23 Population standard…

Q: Two chemical companies can supply a raw material. The concentration of a particular element in this…

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Q: An analysis of variance produces SSb = 30, SSw = 60, F-ratio with df = 2, 15.      For this…

A: From the provided information, SSb = 30 and SSw = 60 Degree of freedom (k - 1) = 2 And (n - k) = 15

Q: A plot of the residuals and frequencies is commonly called a

A: When there is an association between two variables, one variable may be expressed as a function of…

Q: Can a variable that is measured at the ordinal level be grouped into a small number of intervals in…

A: Introduction:A grouped frequency distribution can be constructed from a raw data, by finding the…

Q: Suppose that the heights of college women follow a normal distribution with a mean 65 inches and a…

A: Let X represent the heights of college women Mean=65 Standard deviation=2.5   X~ Normal (65, 6.25)…

Q: Distinguish briefly the descriptive and inferential statistics

A: Descriptive statistics: It is a simple way to describe a dataset. It is that part of statistics…

Q: What is a frequency distribution? Explain how these differ if we are using qualitative data versus…

A: Frequency distribution- Frequency distributions are visual displays that organise and present…

Q: Block 101 got a mean of 87.5 with a standard deviation of 3.2 while Block 102 got a mean of 85.1…

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Q: Describe about the Error Variability?

A: The element of variability is produced by factors, such as measurement imprecision, and is not…

Q: When a there is a significant difference between two distributions, but the research fails to find…

A: The type II error is defined as the probability to fail to reject the null hypothesis, when the null…

Q: Mention two real life applications for the distribution.

A: There are lot of real life applications of distributions. The of those are as following   1.…

Q: 7. Compute the mean and standard deviation of the distribution in #5. andh

A: Given that n=11

Q: What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the…

A: Claim is that the mean systolic blood pressure of CEOs of major corporation is less than 134 mm Hg.…

Q: The first three moments of a distribution about the value 2 of.the variable are 1, 16 and – 40. Show…

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Q: State three examples where similar averages are associated with very different distributions Go…

A: Given :  State three examples where similar averages are associated with very different…

Q: Calculate values and create frequency distribution graph to represent data 1,3,2,5,2,0,2,1,2,1,3,0,7…

A: First we have to calculate frequency And than we have to draw frequency distribution graph.

Q: A random sample of 36 automobiles traveling on a section of an interstate showed an average speed of…

A: Given that  n1 = 36 , x̄ = 60 , ? = 12 , n2

Q: What are the steps for the Constructing Relative Frequency Distributions?

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Q: The variance is sometimes a negative number.

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Q: PROBLEM:  A large corporation has thousands of employees. The distribution of annual salaries for…

A: Note: Hi! Thank you for the question. As you have posted multiple independent questions, according…

Q: Figure I shows the age and annual DDS expenditures for 376 Hispanic and 401 white non hispanic DDS…

A: The histograms of unimodal have only one hump. So by analyzing the scatter plot determine if it has…