Question

You are rolling a 20-sided die where the sides are numbered 1 through 20. Find the indicated odds.

In favor of rolling a 10

Answer 1

@tkhunny @surjithayer @wolf1728 @wio

Answer 2

1:19 -- Why is that a mystery?

Answer 3

wait how is it 1:19?

Answer 4

@tkhunny

Answer 5

The PROBABILITY of rolling a 10 is 1/20. There are 20 possibilities and you want only one of them.

The ODDS of getting a 10 are 1:19. There are twenty possibilities and you want only one of them, and there are 19 things you don't want.

Answer 6

i stil dont get it...

i need another example how about in favor of rolling a number less than 6 do u just do 5/20?

Answer 7

The PROBABILITY of rolling less than 6 is 5/20 = 1/4. There are 20 possibilities and you want five of them.

The ODDS of getting less than 6 are 5:15 = 1:3. There are twenty possibilities and you want five of them, and there are 15 things you don't want.

Answer 8

There is some oddity associated with the words FOR or AGAINST.

The odds FOR getting less than 6 are 5:15.
The odds AGAINST getting less than 6 are 15:5.

Personally, I don't care for that distinction, but you do have to take care to see that you know what someone else is saying. This does contribute to communication.

Answer 9

i dont get it what did u divide?-

Answer 10

I counted. It's just counting.

It's also important to remember how to reduce fractions and ratios, but that is not a significant part of the result.

20:24 = 10:12 = 5:6 -- It's all the same. It's easier to understand what happened if you do NOT reduce. It only maters what your application needs.

Answer 11

oh how about against rolling a 1,3,5

Answer 12

would it be 1:20, 3:20, 1:4?

Answer 13

I have anotyher one against rolling a number greater thatn 13
I did 13/20 amd o gpt 13:20

Answer 14

In favor of rolling an even number less than 10 i got 2:5

Answer 15

The PROBABILITY of rolling 1, 3, or 5 is 3/20. There are 20 possibilities and you want three of them.

The ODDS of getting 1, 3, or 5 are 3:17. There are twenty possibilities and you want three of them, and there are 17 things you don't want.

Answer 16

The PROBABILITY of rolling greater than 13 is 7/20. There are 20 possibilities and you want seven of them.

The ODDS of getting greater than 13 are 7:13. There are twenty possibilities and you want seven of them, and there are 13 things you don't want.

Answer 17

The odds AGAINST rolling greater than 13 are 13:7.

Answer 18

The PROBABILITY of rolling even and less than 10 is 4/20. There are 20 possibilities and you want four of them.

The ODDS of rolling even and less than 10 are 4:16. There are twenty possibilities and you want four of them, and there are 16 things you don't want.

Answer 19

You MUST see the relationship between probability and odds. They are NOT the same thing. The probability denominator was ALWAYS 20. Never fails. This is not the case for odds. For odds, the denominator is the stuff you don't want.

Answer 20

thankyou that makes more sense!

Answer 21

can u help me with some more

Answer 22

im opening a new question

Answer 23

Not if I just have to keep typing the same words over and over. :-)

Actually, it's past my bedtime. Post to the public boards. There are others who can respond.

Answer 24

wait how aboutif its against rolling an odd number gretaer than 10

Answer 25

i got 9:10

Answer 26

Now, that would be just typing the same words over and over.

Think on it. Greater than 10 is 11-20. That's 10 numbers. Go!!

Answer 27

9+10 = 19. You're missing one.

Answer 28

but its says agianst!

Answer 29

When they are the same, it maters not. 10:10 is the same as 10:10.

Answer 30

so the answers 10:10

Answer 31

Is it FOR or AGAINST?

Answer 32

against

Answer 33

Trick question. THEY are the SAME! It doesn't matter. Just seeing if you are paying attention.

gtg

Answer 34

so i was right?!!//

Answer 35

Don't act so surprise. Surely it happens from time to time. Good work.

Answer 36

waiit "You have an equally likely chance of chooseing any integer from 1 through 80. Find the probability of the given event.

An odd number is chosen

Answer 37

would it be any odd number?

Answer 38

Are there just as many odd numbers as there are even numbers? Done!

Answer 39

for probability do i write the ratio?

Answer 40

what does that mean? yes

Answer 41

i got 5/80 as an answer and i changed it to a decimal

Answer 42

p(odd from 1-80) = 40/80 = 1/5 = 0.50 = 50%

Odds of odd from 1-80 are 40:40

Answer 43

how about for a multiple of 3

Answer 44

im sorry last one so i can make sure im doing this right

Answer 45

a perfect square

Answer 46

a factor of 200 is chosen!!