Pulsified333
  • Pulsified333
Two fair die are rolled. (1) What is the probability they sum to 10, 7, or 4? (2) What is the probability they sum to at least 11?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
So for two dices, there are 6*6 = 36 possible combinations right?
Pulsified333
  • Pulsified333
yes
anonymous
  • anonymous
how many combinations add up to 4?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

Pulsified333
  • Pulsified333
2
anonymous
  • anonymous
1,3 3,1 2,2 there are 3
Pulsified333
  • Pulsified333
okay
anonymous
  • anonymous
so for 4, it is 3/36 = 1/12
Pulsified333
  • Pulsified333
correct
anonymous
  • anonymous
so you can do the same for 7 and 10 to for (1).
Pulsified333
  • Pulsified333
are you saying that there are 6 ways to add up to 6?
anonymous
  • anonymous
yes, so its probability is 1/6
Pulsified333
  • Pulsified333
btw how did you get 1/12 for 4?
anonymous
  • anonymous
sorry sorry no there's 5 ways to add up to 6
anonymous
  • anonymous
1,5 2,4 3,3 4,2 5,1
Pulsified333
  • Pulsified333
The number is seven my bad
anonymous
  • anonymous
Oh yes
Pulsified333
  • Pulsified333
can you explain how you got 3/36 though for 4?
anonymous
  • anonymous
3 combinations to get 4 / all the possible combinations = 3/36.
Pulsified333
  • Pulsified333
how is it 36 though
anonymous
  • anonymous
there are 6 possibilities on the first dice & 6 possibilities on the second dice. 6 * 6 = 36
Pulsified333
  • Pulsified333
oh never mind. sorry I didn't think about that, I've had a really long day. You are right
anonymous
  • anonymous
oh ok! :D
Pulsified333
  • Pulsified333
so in total it should be 6/36+3/36+3/36=12/36=1/3
anonymous
  • anonymous
and for (2), you just have to find the probability that the sum is 12 and subtract it from 1
anonymous
  • anonymous
and yes
Pulsified333
  • Pulsified333
why subtract one for the sum is 12?
anonymous
  • anonymous
at least 11 is the same as not 12, becuase the biggest sum is 12
Pulsified333
  • Pulsified333
right. So that means 11 and 12?
anonymous
  • anonymous
so, "at least 11" refers to sums 2-11. so the only sum that is not considered is 12.
Pulsified333
  • Pulsified333
oh
anonymous
  • anonymous
do you get that?
anonymous
  • anonymous
so what you have to do is 1 - (probability of getting 12) = probability of all sums at least 11
Pulsified333
  • Pulsified333
so is that mean the answer is 35/36?
anonymous
  • anonymous
yes :D
Pulsified333
  • Pulsified333
it says 35/36 is wrong but the first answer is right
anonymous
  • anonymous
really? :,o let me think I'm sorry...
Pulsified333
  • Pulsified333
its okay
anonymous
  • anonymous
AHHH I READ THE PROBLEM WRONG... YOU WERE RIGHT IT IS PROBABILITY OF 11 AND 12
Pulsified333
  • Pulsified333
so its 1/12
anonymous
  • anonymous
I CAN'T BE MORE SORRY THAN THIS SORRY
anonymous
  • anonymous
YES
Pulsified333
  • Pulsified333
dude its alright
Pulsified333
  • Pulsified333
That was right
Pulsified333
  • Pulsified333
:D thank you very much
anonymous
  • anonymous
thank you :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.