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re: Math guys- Statistics Question
Posted on 5/6/19 at 8:37 pm to RandySavage
Posted on 5/6/19 at 8:37 pm to RandySavage
0
Posted on 5/6/19 at 8:38 pm to RandySavage
There's a lot of useless information in that question. There are only 22 socks no matter what the color and design is. Smart people get that. Others get confused.
Posted on 5/6/19 at 8:38 pm to RandySavage
you don't mention that Sally is unable to look into the drawer or it's in the dark or anything like that, so I'll say she can look in there and grab the correct sock.
Posted on 5/6/19 at 8:39 pm to athenslife101
quote:
It’s not 1/21. One sock is akready removed from selection
Posted on 5/6/19 at 8:39 pm to Guess
quote:
There are only 22 socks no matter what the color and design is. Smart people get that. Others get confused.
Actually now there are 21 socks in there.
quote:.
There's a lot of useless information in that question
Posted on 5/6/19 at 8:40 pm to RandySavage
Is she fricking blind?
Posted on 5/6/19 at 8:40 pm to RandySavage
This is not a math question it’s a LSAT question
Posted on 5/6/19 at 8:41 pm to RandySavage
Pics of Sally?
Posted on 5/6/19 at 8:41 pm to Cracker
quote:
This is not a math question it’s a LSAT question
Yeah. Sally is fricked win/lose.
Posted on 5/6/19 at 8:42 pm to Cheese Grits
quote:
Sally was in the Navy before her tranny operation
Posted on 5/6/19 at 8:42 pm to Cracker
What did you get on the LSAT?
Posted on 5/6/19 at 8:42 pm to Guess
quote:
There's a lot of useless information in that question. There are only 22 socks no matter what the color and design is. Smart people get that. Others get confused.
But if there are three identical pairs and she has a sock from one of those, there are five matching socks still in the drawer. So it's important to know each pair is distinct.
Posted on 5/6/19 at 8:43 pm to RandySavage
quote:
Sally has 11 pairs of socks in her drawer. Each pair is a different color and design, but they are not together as pairs; they are just in her drawer scattered about. With her left hand, Sally reaches in and picks one sock.
a. While holding that one sock in her left hand, Sally reaches into the drawer and picks another sock. What is the probability of her getting a sock that will match the sock in her left hand?
Just want to make sure I'm doing this right?
My brain is in relax mode, but let me think this out.
She has 11 pairs of socks, so that means she has 22 socks. If she reaches in and takes out a sock there are now 21 socks. So she has about a 5% chance of picking the matching sock.
Posted on 5/6/19 at 8:44 pm to Korkstand
Oh my gosh, I’m a ducking idiot.
Would you believe I have to do math every day for my job? I don’t. Because I suck at it.
Would you believe I have to do math every day for my job? I don’t. Because I suck at it.
Posted on 5/6/19 at 8:45 pm to Tunasntigers92
Didn’t take it, my roommates did.
Posted on 5/6/19 at 8:46 pm to TDcline
Posted on 5/6/19 at 8:46 pm to RandySavage
11 squared.
Posted on 5/6/19 at 8:46 pm to RandySavage
The answer is 1/11. This is reminiscent of the Monty Hall problem.
The fact that she held one then drew another doesn't matter. It can be treated as one act. She drew two.
The fallacy of 1/21 is you are looking for a specific sock. As if what are the odds of getting THE "left green sock". It's not that. If you drew them one at a time your first odds were not 1/22. They were nothing. There were not odds.
In reality you are looking for ANY TWO SOCKS THAT MATCH
Picking one sock first didn't change that goal. You didn't begin by looking for THE "right green sock". Your criteria don't change just because you put it in two meaningless steps. The division in time between drawing each sock did nothing.
The odds of picking two matching socks is 1/11
The fact that she held one then drew another doesn't matter. It can be treated as one act. She drew two.
The fallacy of 1/21 is you are looking for a specific sock. As if what are the odds of getting THE "left green sock". It's not that. If you drew them one at a time your first odds were not 1/22. They were nothing. There were not odds.
In reality you are looking for ANY TWO SOCKS THAT MATCH
Picking one sock first didn't change that goal. You didn't begin by looking for THE "right green sock". Your criteria don't change just because you put it in two meaningless steps. The division in time between drawing each sock did nothing.
The odds of picking two matching socks is 1/11
This post was edited on 5/6/19 at 8:48 pm
Posted on 5/6/19 at 8:47 pm to athenslife101
quote:
Oh my gosh, I’m a ducking idiot.
Would you believe I have to do math every day for my job? I don’t. Because I suck at it.
Can I ask how critical your job is to public safety?
Posted on 5/6/19 at 8:48 pm to Martini
quote:
Pics of Sally?
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