You cannot. There are hundreds of different distributions. The shapes of the distributions depend on their parameters so that the same distribution can be symmetric when the parameters have some specific value, but is highly skewed - in either direction - for other values.
true - Distributions that have the same shape on both sides of the center are called symmetric
The answer will depend on what the question actually is!
There may or may not be a benefit: it depends on the underlying distributions. Using the standard normal distribution, whatever the circumstances is naive and irresponsible. Also, it depends on what parameter you are testing for. For comparing whether or not two distributions are the same, tests such as the Kolmogorov-Smirnov test or the Chi-Square goodness of fit test are often better. For testing the equality of variance, an F-test may be better.
The word for this is "similar." The same shape and the same size is "congruent."
You cannot. There are hundreds of different distributions. The shapes of the distributions depend on their parameters so that the same distribution can be symmetric when the parameters have some specific value, but is highly skewed - in either direction - for other values.
true - Distributions that have the same shape on both sides of the center are called symmetric
It would be wrong to come to that conclusion: variations in the MTTF can be greatly different.
yes
No, and no. Think about two skewed distributions that are mirrored across the mean so that one is right and one is left. they have the same mean and standard deviation, but are opposite. Also, the 5 number summary does not affect a histogram
The answer will depend on what the question actually is!
A equilateral triangle and a normal triangle.
There may or may not be a benefit: it depends on the underlying distributions. Using the standard normal distribution, whatever the circumstances is naive and irresponsible. Also, it depends on what parameter you are testing for. For comparing whether or not two distributions are the same, tests such as the Kolmogorov-Smirnov test or the Chi-Square goodness of fit test are often better. For testing the equality of variance, an F-test may be better.
They fall in Different shape but they are the same shape
The difference between an irregular and regular is that a regular shape is the normal form of a hexagon or pentagon etc. A regular hexagon would have six sides all the same length and all the angles would be the same. An irregular shape is a shape in a different form of the normal form. Example, A irregular hexagon would still have six sides but the lengths may be different and the angles also may be different.
The word for this is "similar." The same shape and the same size is "congruent."
Similar.