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Is a disadvantage of the range as a measure of dispersion a) based on only two observations b) can be distorted by a large mean c) not in the same units as the original data d) has no disadvantage?
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Why is class midpoint in statistical formulas important?
When data are summarised into classes, their exact values are lost. There is no way of knowing whether the original observations were near the bottom of the class, the top of the class or evenly spread out. Assuming that all the observations that fall into a particular class take the midpoint value is a reasonable approximation. It is the maximum likelihood unbiased estimate. It also sets the variance within each class to 0.
Why is standard deviation a better measure of dispersion than variance?
Because it is in same units as the original data. For example, if you have a sample of lengths, all in centimetres, the sample variance will be in units of centrimetres2 which might be more difficult to interpret but the sample standard deviation with be in units of centimetres, which would be relatively easy to intepret with reference to the data.
What does it mean to test a hypothesis?
A hypothesis is a fancy way of saying "guess". So to test a guess, you perform tests, or experiments, and make observations to see if this guess holds. If the experiments are sound (there are no flaws in the setup, you have accounted for all variables or things that can affect the results). And after collecting some data, perhaps repeating the experiment, you can see if the data supports the original hypothesis.
What are two sources of data?
Simple, Primary and Secondary Data
If the sale price of a car is 12590 which is 20 percent off the original price What is the original price?
The original price was 15,737.50
What is relative measure?
These measures are calculated for the comparison of dispersion in two or more than two sets of observations. These measures are free of the units in which the original data is measured. If the original data is in dollar or kilometers, we do not use these units with relative measure of dispersion. These measures are a sort of ratio and are called coefficients. Each absolute measure of dispersion can be converted into its relative measure. Thus the relative measures of dispersion are:Coefficient of Range or Coefficient of Dispersion.Coefficient of Quartile Deviation or Quartile Coefficient of Dispersion.Coefficient of Mean Deviation or Mean Deviation of Dispersion.Coefficient of Standard Deviation or Standard Coefficient of Dispersion.Coefficient of Variation (a special case of Standard Coefficient of Dispersion)
What is the definition of the word deformed?
Deformed can have many definitions. The main definition, however, is "become distorted or misshappen; undergo deformation." Deformed simply means a distorted shape of the original form.
What is an original document containing the observations ideas and conclusions of an individual?
Primary source
What are the advantage and disadvantage of reproducing by spores?
An advantage to reproducing through spores is that it can be done asexually. A disadvantage is that the spores will be clones of the original organism, leaving them vulnerable.
What are the four major adverse side effect of scan conversion?
staircase,unequal brightness,distorted image,deviation from original position
What are the disadvantages of faxing?
The disadvantage of the fax compared with mail or courier is that it cannot send "original signatures" and "original paperwork" - only copies. The disadvantage of fax compared with email and other electronic methods is that it is considered to be more cumbersome.
What is temporal dispersion?
Temporal dispersion refers to the spreading out of different components of a signal in time. It often occurs in communication systems when different parts of a signal travel at different velocities, leading to a distortion of the original signal. Temporal dispersion can degrade the quality of transmitted information and is a challenge that needs to be managed in signal processing and communication engineering.
What does a summarie?
A general, shortened explanation of a long description.Historical context of the original text- apexThe name and author of the text being summarized. (Apex)A. Your original questionB. Your predictionD. Your observations/data
If your prediction is proven incorrect you should still include all your observations in your analysis and discuss why you think your original prediction turned out to be wrong?
true
If your prediction is proven incorrect you should still include all your observations in your analysis and discuss why you think your original prediction turned out to be wrong.?
true
What is the main Disadvantage Of Corporations As Compared With Other Forms Of Business Organization Involves?
Shareholders may remove the original owners from a corporation.
What is the summary of many experimental results and observations?
No. Observations come first, followed by a hypothesis as to what might be happening. This is then developed into a theory which purports to explain the observations, supporting or rebutting the original hypothesis. Experiments are then used to validate the theory into the realm of fact.
