Probability (last of them:D) questions need checking please

M

Monkeyseat

Full Member
Joined
Jul 3, 2005
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298
Hi....again.:p

1)

Well this one first (b):

http://img80.imageshack.us/img80/5889/hpim08443fz.jpg

Well I did:

Red: 29/60=0.483r 0.483r x 20=9.6r=9 or 10

White: 11/60=0.183r 0.183r x 20=3.6r=3 or 4

Yellow: 20/60=0.3r 0.3r x 20=6.6r=6 or 7

Just wondering if I've done this right.

2)

Well this one looks really simple (and it probably is), it just looked too simple in the book (trick question:p?).

http://img80.imageshack.us/img80/102/hpim08435xx.jpg

It's 3a & b.

a) 3/4

b) 10%

3)

Last one:p

http://img80.imageshack.us/img80/6885/hpim08458lr.jpg

a) She could be taking the same one out over and over.

b) 1.

c) She could of just missed it and kept taking out the same ones.

----------------------------------

Have I done them correct?:D
 
Finally, before I hand them in soon:

I had this table to show all the probabilities of outcomes on a dice:

a)The probability for getting 2/6's is shown as 1/36.

Then we had a question that said:

f)

The probability of getting a 6 on 1 dice is 1/6. The probability of getting a 6 on the other dice is 1/6.

Multiply these probabilities, compare your answer to part a.

What do you notice?

I just put;

The answers are the same, the probability of throwing 2 6's is 1/36, both methods get the same answer.


Okay or does it need padding?
 
Monkeyseat said:
Finally, before I hand them in soon:

I had this table to show all the probabilities of outcomes on a dice:

a)The probability for getting 2/6's is shown as 1/36.

Then we had a question that said:

f)

The probability of getting a 6 on 1 dice is 1/6. The probability of getting a 6 on the other dice is 1/6.

Multiply these probabilities, compare your answer to part b.

What do you notice?

I just put;

The answers are the same, the probability of throwing 2 6's is 1/36, both methods get the same answer.


Okay or does it need padding?
Click to expand...

Gotta hand that in tomorrow, would you say it is okay? :wink:
 
Sure. I guess I'd say 1/6 * 1/6 = 1/36 = 1/36.

What a question. :)
 
alexflury said:
Sure. I guess I'd say 1/6 * 1/6 = 1/36 = 1/36.

What a question. :)
Click to expand...

Yeah but it was all the comparing crap I didn't know what to write about. They are the same.
 
I just realised it says "compare to part b", but I don't see part b anywhere. I was thinking of part a. What's part b?
 
Okay.

Monkeyseat said:
Yeah but it was all the comparing crap I didn't know what to write about.
Click to expand...

Yeah, this is weird. That's what my second "= 1/36" was for. First, you multiply 1/6 by 1/6, and you get 1/36. Then you note that 1/36 = 1/36. :)
 
alexflury said:
Okay.

Monkeyseat said:
Yeah but it was all the comparing crap I didn't know what to write about.
Click to expand...

Yeah, this is weird. That's what my second "= 1/36" was for. First, you multiply 1/6 by 1/6, and you get 1/36. Then you note that 1/36 = 1/36. :)
Click to expand...

Yay I got it right? :lol: I didn't know if that was enough, comparing them.

------------------------------

Last one (I promise).


3)

Kate, Pam and Wendy are drawing names from a hat.

Draw a table to show all possible outcomes.

Does it mean a space diagram or somthing? Can't remember what they're called/how to do them.
 
I would say look at the dice table and draw something similar. It depends. If you know Kate draws first and Pam second it might look like: (> means draws.)
Code: 
K>K | P>P W>W
    | P>W W>P
____|________
K>P | P>K P>W
    | P>W W>K
____|________
K>W | P>K W>P
    | P>P W>K
Those are the six possibilities.
-------------------
Gene
 
These are the outcomes...
Kate Pam Wendy
Kate Wendy Pam
Pam Kate Wendy
Pam Wendy Kate
Wendy Pam Kate
Wendy Kate Pam

So

I worded it wrong, I don't think they are the ones drawing names, so I'll do it without >.

Also, I have been doing a lot of my tables like this:

http://img301.imageshack.us/img301/5625/hpim08497ke.jpg

I've tried doing this one like that but it's not possible? (right bit says coin)
 
That looks like a table to me, if you put 1st, 2nd, 3d at the top.
------------------
Gene
 
Gene said:
That looks like a table to me, if you put 1st, 2nd, 3d at the top.
------------------
Gene
Click to expand...

Would you say it is a probability space diagram as that's what the whole chapter is about? Like what I posted.

Sorry for asking so many questions, your great.
 
Monkeyseat said:
Gene said:
That looks like a table to me, if you put 1st, 2nd, 3d at the top.
------------------
Gene
Click to expand...

Would you say it is a probability space diagram as that's what the whole chapter is about? Like what I posted.

Sorry for asking so many questions, your great.
Click to expand...

Like for the heads and tails coin one, where you write e.g. H1.[/code]
 
Sorry to keep bumping this I just want to get it finished and it's sliping off the page.
 
I told you that the Thu Jul 14, 2005 1:22 am post looked good to me.
The example you show seems to have two types of data (heads/tails and 1-6) which is why you needed the first column.
There are too many questions in this post. One question, one post is the way to do it.
-----------------------
Gene
 
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