Irrational numbers cannot be represented in the real physical world, I’ve been told. So my question is: if I have a one meter by one meter square of wood, which is a perfect square precisely to the atom, is its ...

## Discy Latest Questions

What are the use of x-bar chart, R-Chart, p-Chart, & c-Chart and when to use them. In: Mathematics

How do people get a count for large gatherings such as the protest in Hong Kong, where it’s approximated that 2 million people are gathered In: Mathematics

What kind of techniques are best for counting the number of protestors in Hong Kong? Or any crowd for that matter? In: Mathematics

How do we use Gaussian Elimination to solve systems of equations? In: Mathematics

I’m studying engineering, and I see sine waves everywhere I look. why is this waveform so common in nature? In: Mathematics

When we say something is statistically significant what does that mean? In: Mathematics

I’m struggling with statistics and I need someone to for me which test to use when. Binomial test One sample t-test Independent Samples t-test Paired samples t-test Cross-tabulation/Chi-square test Pearson’s r / Regression In the most basic language possible, for some reason ...

Why is the diagonal in a unit square √2? Shouldn’t it add up to 2 since it has to go up 1 unit and right 1 unit? If I made infinitely small vectors zig-zaging like stairs towards the opposite vertex ...

So the way I understand linear regression is that you plot two variables against one another, one on the x-axis and one on the y-axis, this results in a pointcloud of all your observations. Then you draw the best fitting ...