George Frank
Reputation
705
Top tag
Next privilege 1,000 Rep.
Create new tags
 Nov 27 awarded Nice Question Aug 29 answered How do mathematician make sense of “outcome” and “events” in probability? May 5 awarded Yearling Apr 13 answered Concept of random sample? I have a truly problem understanding it. Mar 12 answered Does randomness exist? Feb 8 answered What do you suggest I do to prepare? Thanks In advance! Feb 4 answered How to make sense of fractions? Jan 21 answered What was the first bit of mathematics that made you realize that math is beautiful? (For children's book) Jan 9 answered What is a function? Dec 29 answered Why are “imaginary numbers” imaginary? Oct 4 answered Techniques to understand mathematics. What and how? Sep 24 awarded Autobiographer Sep 2 answered $\mathbb{C}$ and $\mathbb{R}^{2}$ Sep 2 answered Taking Calculus in a few days and I still don't know how to factorize quadratics Aug 28 answered What is the motivation for quaternions? Aug 25 answered How should I self-study calculus? Aug 5 comment Two dice thrown, one comes up 6 It's amazing how few people understand possible outcomes and conditional probability. Pre-kidney is exactly right: the answer is 1/11. Only if the dice were distinguishable, e.g., painted different colors, would the answer would be 1/6. Jul 13 comment What exactly is a number? Oops, I forgot to mention quantity as measurement which uses units and leads to quantity as position and/or location, relative zero, fractions of various kinds, and vectors. And infinity as a sort of quantity. Quantity is physical and an amazing concept. Jul 13 comment What exactly is a number? Yes. Numbers are precisely the names and shorthand notation that we give to quantities. Quantity is a much richer concept that mere counting. It is capable of direction and/or position as expressed in one dimension as signed numbers and in two dimensions as complex numbers and in all other dimensions though not nicely behaved in all. n-adic numbers are an interesting alternative way to represent negative numbers. Then, of course, there are myriad classes of numbers that are also called "numbers" such as prime numbers etc. Numbers can also be used as labels such as indicators of position etc. Jul 11 answered About Trigonometry