Question

Plz help.. Will give Medal and Fan
The sample space for a roll of two number cubes is shown in the table.
What is the probability that the roll will result in both numbers being the same?

Answer 1

Choices are
1/6
1/3
7/18
2/3

Answer 2

So, what fraction of the total amount of options is there a double number?

Answer 3

I don't know.. I'm not good at this

Answer 4

I really need help on Probability

Answer 5

Okay. Let's break it down then. How many double numbers do you count in that table?

Answer 6

List them out for me.

Answer 7

Ok
One second
I'm still looking

Answer 8

I don't get it.. I see nothing similar in the table

Answer 9

This is the table

Answer 10

I just mean the numbers in which both dice are the same. Like (1,1) or (2,2).

Answer 11

I have done two for you. Find the others. There are four more.

Answer 12

Oh

Answer 13

3,3
4,4
5,5
6,6
?

Answer 14

Yup. So now we have (1,1), (2,2), (3,3), (4,4), (5,5), and (6,6). That makes 6 of these double number pairs, right?

Answer 15

Yes

Answer 16

Okay. Now how many items are there total in the sample space? (1,1) Is one item. (1,2) is another item.

Hint: multiply the number of rows by the number of columns.

Answer 17

@Justin_Lee

Answer 18

Here you go @Justin_Lee

Answer 19

@jim_thompson5910

Answer 20

Sorry I keep posting the wrong name

Answer 21

Do you think you can help me? I need it now..

Answer 22

Here is the table

Answer 23

you found that there are 6 items in the sample space:

(1,1)
(2,2)
(3,3)
(4,4)
(5,5)
(6,6)

how many total items are there total? In other words, how many ways are there to roll 2 dice?

Answer 24

6?

Answer 25

I'm sorry I don't get it

Answer 26

look at how many ordered pairs you have in the ENTIRE table

Answer 27

36

Answer 28

so is it 1/6?

Answer 29

yes 6/36 = 1/6

Answer 30

Thank you

Answer 31

I could of gave you the best response but I already gave it Justin_Lee

Answer 32

that's fine

Answer 33

Sorry. I just noticed this now. I'm glad you got the right answer though!