Ihatestatistics
New member
- Joined
- Dec 13, 2019
- Messages
- 3
Ok, so I consider myself a pretty decent at math, but statistics literally makes me want to throw my computer across the room.
That being said, I own a water sports company, and we have to administer random drug tests at a number equal to 50% of the total pool of employees at a minimum each year. We do this through a consortium. The total pool of people is 520. So each year 260 tests have to be administered. So each week 5 names must be pulled to get to the 260 total tests a year, and you have the same chance each week regardless of how many times you are picked. One of my employees has complained that he keeps getting called (not because he does drugs, hes a really good kid) but because its a hassle to drive there after works and deal with the whole process. So it got my brain going, and I quickly remembered why i hate statistics so much.
So if anyone could help me out with some formulas that i could use to figure some things out, I would appreciate it.
Being that 5 names are pulled each week for 52 weeks, with a total pool of 520...
Whats the probability of being picked one time a year, 2 times....ect
Whats the probability of being picked 2 times a year for 2 years, 3.....ect
Any help would be awesome, thanks.
That being said, I own a water sports company, and we have to administer random drug tests at a number equal to 50% of the total pool of employees at a minimum each year. We do this through a consortium. The total pool of people is 520. So each year 260 tests have to be administered. So each week 5 names must be pulled to get to the 260 total tests a year, and you have the same chance each week regardless of how many times you are picked. One of my employees has complained that he keeps getting called (not because he does drugs, hes a really good kid) but because its a hassle to drive there after works and deal with the whole process. So it got my brain going, and I quickly remembered why i hate statistics so much.
So if anyone could help me out with some formulas that i could use to figure some things out, I would appreciate it.
Being that 5 names are pulled each week for 52 weeks, with a total pool of 520...
Whats the probability of being picked one time a year, 2 times....ect
Whats the probability of being picked 2 times a year for 2 years, 3.....ect
Any help would be awesome, thanks.