Variable
31
MENTIONS
3
EPISODES
3
PODCASTS
Search complete. 31 mentions across 3 episodes found for "Variable".
Oct 8, 2026
Randy Mely on the One Question to Ask Before You Send Any People Analytics Request
R
5:22Randy MelyGUEST
Yeah, absolutely.
R
5:24Randy MelyGUEST
I think you can make it a little bit more simpler at the genesis of the question by just asking yourself one question before you actually fire off that request to the HRBP or whoever, and that is, if X, I will do A.
R
5:36Randy MelyGUEST
If Z, I will do B.
R
5:39Randy MelyGUEST
Basically, what are you deciding you're going to do depending on what the data shows you? That's the first thing you need to ask yourself as the person firing off that request, because that changes-
R
5:47Randy MelyGUEST
the whole conversation.
R
5:49Randy MelyGUEST
So going back to that example where I was talking about, you know, I feel like the sales team.
R
5:52Randy MelyGUEST
So you might say, if attrition in these critical roles is at X, I will start funding a retention program or looking into a retention program.
R
6:01Randy MelyGUEST
If it's Y, I'll do nothing.
Chapter 2 Screencast - Atomic Mass

M
6:34Michael RussellHOST
We're gonna have the average, which is sixty-nine point seven two three, equals the mass of the first one, sixty-eight whatever, times its percentage.
M
6:44Michael RussellHOST
So X here is gonna be the percentage of the sixty-nine, and we're gonna add it to the mass of the second one, that seventy point nine number, times the abundance of the other one, which we'll call Y.
M
6:56Michael RussellHOST
So you can see right now we have two unknowns, X and Y, and those are the two percentages, uh, of the gallium-61 and gallium-71, and those are tough to solve.
M
7:08Michael RussellHOST
However, the two abundances together have to equal a hundred percent, or if you're talking about them in, not-- in decimal version, one, which is a hundred percent in decimal, one equals X plus Y.
M
7:21Michael RussellHOST
So what you can do then is have one of them, we'll say Y, equals one minus X.
M
7:28Michael RussellHOST
If you subtract X from both sides on that last one, you get Y equals one minus X, and you're good to go.
M
7:35Michael RussellHOST
So what we're gonna do in a little bit is we're gonna substitute this part right here, the one minus X, we're gonna substitute it up here.
M
7:44Michael RussellHOST
Then we're gonna have one equation with one unknown X, and you can solve for X, and at the very end, go back and go one minus X to solve for Y.
Lecture E2 (2026-09-29): Random-Variate Generation

T
9:59Ted PavlicHOST
You can run that into the inverse of the CDF.
T
10:03Ted PavlicHOST
So on the homework, as we'll see today as well, you just set this thing equal to R and then solve for X in terms of R.
T
10:13Ted PavlicHOST
And then that will give you your inverse sampling, your inverse sampler, inverse transform sampler.
T
10:19Ted PavlicHOST
And that's just equivalent to taking numbers and running them in the Y-axis.
47 MINS LATER
T
57:37Ted PavlicHOST
You solve for the inverse of that.
T
57:40Ted PavlicHOST
So you set R equal to the CDF that you have, and then you invert it.
T
57:45Ted PavlicHOST
So you solve for X in terms of R.
T
57:48Ted PavlicHOST
And hopefully you can do that.