Question 4
André, Bianca, Carlos, and Dalva want to draw lots for a book. They put 3 white balls and 1 black ball in a box and agree to draw one ball each, without replacement, in alphabetical order of their names. Whoever draws the black ball wins.
a) What is André's probability of winning?
b) What is Dalva's probability of winning?
To draw lots for another book, André suggests using 2 black balls and 6 white balls. As before, the first person to draw a black ball wins. If the first four balls are white, they keep drawing in the same order.
c) In this new drawing, what is André's probability of winning?
d) What is Dalva's probability of winning?
a) What is André's probability of winning?
b) What is Dalva's probability of winning?
To draw lots for another book, André suggests using 2 black balls and 6 white balls. As before, the first person to draw a black ball wins. If the first four balls are white, they keep drawing in the same order.
c) In this new drawing, what is André's probability of winning?
d) What is Dalva's probability of winning?