Re: One quiz score is chosen at random from each of the three students, We
[#permalink]
10 Mar 2024, 02:30
OE
Wendy’s list of three quiz scores contains two even scores, 8 and 10, so the probability that an even number is selected from her quiz scores is 2/3
Yuri’s list contains the two even numbers, 10 and 6, so there is also a 2/3 probability that an even number is selected from his list. Zoe has only one even quiz score out of three scores total, so the probability that an even number is selected from her list is 1/3
Find the probability that all three numbers chosen are even by multiplying these independent probabilities: 2/3 * 2/3 * 1/3 = 4/27