The score when two fair six-sided dice are thrown is the sum of the two numbers on the upper faces. Show that the probability that the score is 4 is $$$\frac{1}{12}$$$. ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................

Mathematics

IGCSE&ALevel

CAIE

Exam No：9709_s20_qp_51 Year：2020 Question No：1(a)

Answer:

Prob of 4 (from 1,3,3,1 or 2,2) $=\frac{3}{36}=\frac{1}{12} \quad$ AG

Knowledge points:

5.3.1 evaluate probabilities in simple cases by means of enumeration of equiprobable elementary events, or by calculation using permutations or combinations (e.g. the total score when two fair dice are thrown.) (e.g. drawing balls at random from a bag containing balls of different colours.)

Answer:

Knowledge points:

Solution:

Related Question