Problema Solution
erin has cards numbered 1 to 8. what is the probability of picking 3 odd numbered cards in a row, if the first two are not replaced
Answer provided by our tutors
The probability the first card taken out was a odd is: 4/8
Given that the first card taken out was odd, the probability the second one was odd is: 3/7
So the probability the first two cards were odd is: (4/8)(3/7)
Given that the first two cards were odds, the probability the third is odd is: 2/6
So the desired probability is: (4/8)(3/7)(2/6) = 1/14