Two fair six sided dice, called A and B, are rolled and the results are added together. The sum of the dice is 8, what is the probability that two fours were rolled?

We know that A+B = 8 so we should first count the number of ways that the two dice could total 8. (A = 2, B = 6), (A=3, B=5), (A=4, B=4), (A=5, B=3) , (A=6, B= 2) -- this gives 5 possible waysWe also know that only one of these outcomes is (A=4, B=4) is the desired outcome. We know that each of these results is equally likely to occur because the dice are both fair and rolled independently so we can conclude the answer is 1/5.

JM
Answered by Jak M. Maths tutor

3146 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Use implicit differentiation to find the derivative of 2yx^2, with respect to x.


Solve the equation: 2x+3y=8 & 3x-y=23


How do I sketch a graph of a polynomial function?


Show that, for all a, b and c, a^log_b (c) = c^log_b (a).


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences