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### London Dispersion Forces - Purdue University

London Dispersion Forces. The London dispersion force is the weakest intermolecular force. The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction.

### dispersion of a gene, what does it mean? - Biostar: S

From the definition of dispersion, In statistics, dispersion (also called variability, scatter, or spread) denotes how stretched or squeezed a distribution (theoretical or that underlying a statistical sample) is. Common examples of measures of statistical dispersion are the variance, standard deviation and interquartile range.

### High dispersion of a variable could result in? | Yahoo Answers

Feb 02, 2012· High dispersion of a variable could result in? a) the values of mean and median being quite different b) a small variance c) a small standard deviation d) a small range. Follow . 1 answer 1. . Would I still be called a doctor if I complete a PhD in Economics? 6 answers

### Why is HF a weaker acid than HCL? - Quora

Apr 14, 2017· HF is a weaker acid. Thus, HF is less soluble than HCl, meaning it is also a weaker acid. It does experience a weak charge oscillation called Van Der Waal or London dispersion forces, but this is weaker than the dipole - dipole interaction seen in HCl.

### Why does a piece of lens not disperse light? - Quora

Hi, also a lens disperses the light into different colors. Dispersion happens when the light travels from one transparent medium into the next. These materials refract the light differently, and on each wavelength (read: color) of the light this has a slightly different effect. …

### London dispersion force - Wikipedia

London dispersion forces (LDF, also known as dispersion forces, London forces, instantaneous dipole–induced dipole forces, or loosely van der Waals forces) are a type of force acting between atoms and molecules. They are part of the van der Waals forces.The LDF is named after the German-American physicist Fritz London

### (Answered) A description of the number of times that the .

Mar 13, 2016· A description of the number of times that the various attributes of a variable are observed in a sample is called a _____. a. frequency distribution b. mean c. measure of dispersion d. contingency table e. multivariable table

### Community Forums - Differential Group Delay - Optiwave

Dec 25, 2015· December 25, 2015 at 2:14 pm #28900. alistu. Hi Mohamed, The time delay of the signal is dependent on the dispersion parameter, and the dispersion parameter is wavelength dependent, which causes a pulse broadening (as for different wavelengths, the delay is different).

### Measure of Dispersion in statistics - SlideShare

May 06, 2017· Definition of Measure of Dispersion In statistics, dispersion (also called variability, scatter, or spread) is the extent to which a distribution is stretched or squeezed. Common examples of measures of statistical dispersion are the variance, standard deviation, and interquartile range.

### Statistical dispersion - Wikipedia

In statistics, dispersion (also called variability, scatter, or spread) is the extent to which a distribution is stretched or squeezed. Common examples of measures of statistical dispersion are the variance, standard deviation, and interquartile range.. Dispersion is contrasted with location or central tendency, and together they are the most used properties of distributions.

### TWEETER | definition in the Cambridge English Dictionary

tweeter meaning: 1. a loudspeaker designed to produce the high notes in a sound system 2. a person who uses the social networking service Twitter™. Learn more.

### Unit D- Optics Chapter 11 Flashcards | Quizlet

Refraction Questions. The index of refraction / refractive index is the amount by which a transparent medium decreases the speed of light. So, the larger the refractive index, the more the speed of light is …

### [R] Calculating dispersion in glm - Grokbase

Bill Venables Small footnote. This estimate of the dispersion parameter is according to the recommendation in McCullagh and Nelder. For normal models it agrees with mean deviance, for Poisson and Binomial it is not needed as dispersion is 1, known, so the only contentious cases commonly occurring are gamma, inverse gaussian and quasi and for quasi you don't have much else to go on.

### Measures of Dispersions: Range, Quartile Deviation, Mean .

Measures of Dispersions: Range, Quartile Deviation, Mean Deviation, . average is called a measure of variation or dispersion." . mean each citizen has this income or income near to it or merely by increasing GDP all citizens can be equally developed

### Emulsion vs. Dispersion – What is the Difference .

May 06, 2014· The process of dispersing is sometimes called "milling" or "grinding". In actuality, no particle grinding is actually occurring. As mentioned previously, the type of equipment used to create a dispersion or emulsion varies and is depend on the characteristics of the product and process.

### Why does a piece of lens not disperse light? - Quora

I do not know what you mean by a "piece of lens" - but if it does not disperse light, then it must be an Achromatic Lens - an ACHROMAT. Light is refracted and its speed is changed when it passes from one medium to another. At the interface, it is.

### Dispersion Forces - Definition, Polarity, Consequences .

Electrostatic attraction between temporary dipoles is called dispersion forces. Dispersion forces are inversely proportional to the sixth power of the distance between interacting atoms or molecules. For them to be important the interacting atoms or molecules must be in virtual contact with one another. Dispersion Force and Polarity

### London dispersion force - Wikipedia

London dispersion forces (LDF, also known as dispersion forces, London forces, instantaneous dipole–induced dipole forces, or loosely van der Waals forces) are a type of force acting between atoms and molecules. They are part of the van der Waals forces. The LDF is named after the German-American physicist Fritz London.

### Graphing, Central Tendency, & Dispersion

Dispersion • So, why the change? – Remember that x-bar is an estimate of µ • Whenever we estimate a population mean from a sample mean and expect to accurately estimate the population mean, we lose what is called a degree of freedom – We know that the mean of 1, 4, & 7 is 4 – How many values can we freely change and still obtain

### What is the meaning of a red sunset? - Answers

What is the meaning of a red sunset? . there should be a nice day tomorrow. Why is the red sunset maple tree called the red sunset maple tree? . red colour dispersion is less than all other .

### What is over-dispersion in statistics? How do we test for .

The fact that the variance is larger than the mean is called "over-dispersion". The presence of overdispersion tells us that there is additional uncertainty in the rate as well. This can be .

### Dispersion - Statistics Solutions

Jun 11, 2009· In statistics, dispersion has two measure types. The first is the absolute measure, which measures the dispersion in the same statistical unit. The second type is the relative measure of dispersion, which measures the ratio unit. In statistics, there are many techniques that are applied to measure dispersion.

### what is fiber optic slope fo dispersion? | Yahoo Answers

Jun 28, 2006· Answers. Best Answer: The rate of change of dispersion with respect to wavelength at the zero-dispersion point is called the zero-dispersion slope. Doubly and quadruply clad single-mode fibers have two zero-dispersion points, and thus two zero-dispersion slopes. In a single-mode optical fiber, the zero-dispersion wavelength is.

### What is the meaning of BC and AD? And what does BCE and CE .

What is the meaning of BC and AD? And what does BCE and CE mean? by Alex Carmichael edited by Matt Slick. AD does not mean "After Death." It is an abbreviation for "Anno Domini," which is a Latin phrase meaning "in the year of our Lord," referring to the year of Christ's birth. BC means before Christ.

### Is it possible to calculate the average of dispersion in .

Hi everyone, I have a clarification question on how the average expression versus dispersion cur. Conclusions to draw from PCA analysis regarding mapping Hey everyone, I have performed a RNAseq experiment with two closely related species, for one of .

### Chapter 2 Test Review | Statistics Flashcards | Quizlet

Start studying Chapter 2 Test Review. Learn vocabulary, terms, and more with flashcards, games, and other study tools. . If the mean of a distribution is greater than the median, then the distribution is positively skewed. . The method of assigning probabilities to uncertain outcomes based on laws and rules is called the relative frequency .

### Dispersion (optics) - Wikipedia

In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency.. Media having this common property may be termed dispersive media.Sometimes the term chromatic dispersion is used for specificity.. Although the term is used in the field of optics to describe light and other electromagnetic waves, dispersion in the same sense can apply to any sort of wave .

### High dispersion of a variable could result in? | Yahoo Answers

Feb 02, 2012· High dispersion of a variable could result in? a) the values of mean and median being quite different b) a small variance c) a small standard deviation d) a small range. Follow . 1 answer 1. . Would I still be called a doctor if I complete a PhD in Economics? 6 answers

### How to measure the spread of data - Helpful Stats

Mar 09, 2017· Dispersion, or spread of data, is measured in terms of how far the data differs from the mean. In other words, if mean is the centre of the data, if we get an idea about how far the individual data points deviate from the mean, we would have an idea about the spread.