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# Help with Stats Question! watch

1. Could anyone explains these question, especially 'a' and 'b', Ive tried everything...
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2. (Original post by jckh12)
Could anyone explains these question, especially 'a' and 'b', Ive tried everything...

You say that you have tried everything ... Can you give some idea of what you actually have tried

I only ask as (a) is very simple
3. (Original post by TenOfThem)
You say that you have tried everything ... Can you give some idea of what you actually have tried

I only ask as (a) is very simple
I am new to stats and I've been mainly trying to work on how you get 2/33 for the second part.

However for the first part am I've got many ideas, such as it has to be 100% as there has to be males on both stalls as there is 8 and 6 on each stall?
4. (Original post by jckh12)
I am new to stats and I've been mainly trying to work on how you get 2/33 for the second part.

However for the first part am I've got many ideas, such as it has to be 100% as there has to be males on both stalls as there is 8 and 6 on each stall?
That is correct for b

If you chose MMFFF do you know what the probability of that is?
5. (Original post by TenOfThem)
That is correct for b

If you chose MMFFF do you know what the probability of that is?
I was thinking something like...

((1/2x2/8)+(1/2x3/3))/11 but I know this is wrong.
6. (Original post by jckh12)
I was thinking something like...

((1/2x2/8)+(1/2x3/3))/11 but I know this is wrong.
I cannot imagine where you got that from

Was that the answer to the full question ... Or to my question in the last post?
7. Full question, I take it am totally wrong :/
8. (Original post by jckh12)
Full question, I take it am totally wrong :/
How did you get that ... You may well have taken an approach that I have not thought of
9. (Original post by TenOfThem)
How did you get that ... You may well have taken an approach that I have not thought of
I didn't get the correct answer so I assume its wrong but.

((1/2x2/8)+(1/2x3/3))/11

2 out of 8 male and 50% chance of going into one stall of the other

3 out of 3
and 50% chance of going into one stall of the other

divided by 11 as that is the total amount of people
10. (Original post by jckh12)
I didn't get the correct answer so I assume its wrong but.

((1/2x2/8)+(1/2x3/3))/11

2 out of 8 male and 50% chance of going into one stall of the other

3 out of 3
and 50% chance of going into one stall of the other

divided by 11 as that is the total amount of people
Oh
Okay

So .... Back to the question I asked ... Can you work out the probability of having MMFFF?
11. (Original post by TenOfThem)
Oh
Okay

So .... Back to the question I asked ... Can you work out the probability of having MMFFF?
Am sorry I don't know, am sure its pretty simple though.
12. (Original post by jckh12)
Am sorry I don't know, am sure its pretty simple though.
No worries

Do you know what the probability of choosing a M first is

Do you then know the probability of choosing another M second
13. (Original post by TenOfThem)
No worries

Do you know what the probability of choosing a M first is

Do you then know the probability of choosing another M second
1/2 a chance? then again half
14. (Original post by jckh12)
1/2 a chance?
No

When choosing the first person there are 11 options, 8 of them are male

What is the probability of choosing a male
15. (Original post by TenOfThem)
No

When choosing the first person there are 11 options, 8 of them are male

What is the probability of choosing a male
8/11 chance
16. (Original post by jckh12)
8/11 chance
Ok so he has gone and stood by Matt's table

What is the chance that the next one is M as well
17. (Original post by TenOfThem)
Ok so he has gone and stood by Matt's table

What is the chance that the next one is M as well
7/10
18. (Original post by jckh12)
7/10
Ok

So can you write down the 5 probabilities for MMFFF

you have, of course, done the first 2
19. (Original post by TenOfThem)
Ok

So can you write down the 5 probabilities for MMFFF

you have, of course, done the first 2
So I've got 8/11, 7/10

Now would Girls be 3/9, 2/8, 1/9

If so then what so I do to get 2/33
20. (Original post by jckh12)
So I've got 8/11, 7/10

Now would Girls be 3/9, 2/8, 1/9

If so then what so I do to get 2/33
Ok ... You are getting there 😀

Now ... What do you do with probabilities if all 5 things need to happen?

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