
statistics - How to find mean and median from histogram
Jul 26, 2014 · You can get both the mean and the median from the histogram. The way to calculate the mean is that illustrated in the video and already shown in one of the comments.
What does it mean to solve or find solutions in mathematics?
Feb 4, 2015 · Something that has been really confusing me lately is that this equation has four solutions $$3x(x+1)(x^2+x+2)=16x(x+1)(2x+1)$$ But what does that mean? Until now solutions to me has …
Finding the mean and median of a probability density function
The mean is the point of balance, which is basically the center of mass if the probability density function was solid. Median = $\int_ {-\infty}^M f (x) dx = \frac {1} {2}$ or the area equals 1/2 (since the total …
Arithmetic mean. Why does it work? - Mathematics Stack Exchange
Sep 7, 2014 · The arithmetic mean is a number that when multiplied by the number of elements, gives you the sum of all the elements. Because of this fact, it can't be more than the maximum nor less …
How to calculate a Modulo? - Mathematics Stack Exchange
May 16, 2015 · Can someone show me a general step-by-step procedure on how I would be able to find out the 5 modulo 10, or 10 modulo 5. Also, what does this mean: 1/17 = 113 modulo 120 ? Because …
What's the correct definition of "conjugate", and do we identify them?
Oct 17, 2019 · Usually what kind of conjugate we mean (over rationals, over reals, or over some other field) is clear from context, but if there's no context, usually it means over the rationals, and for over …
What exactly does undefined mean? - Mathematics Stack Exchange
Sep 3, 2022 · Now, what exactly does undefined mean? Because I've also noticed that most mathematicians tend to use "undefined" when interpreting a value that is approaching both infinity …
What does it mean to solve a math problem analytically?
2 Analytic in the generic math sense essentially means to solve using Algebra (properties, rules, or theorems, or use trig/functions properties), or in other words without the use of a calculator, graph, or …
functions - What does 'express in terms of $x$' mean? - Mathematics ...
Express A in terms of B I tell my mind to assume that B is an independant variable and A is a dependant variable and I have to make an equation as if later I would solve for A. This is my personal theory as I …
Statistics - Calculating Mean given standard deviation and percentage ...
You can calculate (or look up) how many standard deviations away from the mean you are at 4%. Given this, you multiply the number of standard deviations from the mean by the standard deviation (in lbs) …