Math
posted by Lala on .
You toss tails and roll an even number ( when you toss a coin and roll a number cube)
Find the probability.
I thought It was 1/3 but I think that is wrong.

prob(tail and even) = (1/2)(3/6) = (1/2)(1/2) = 1/4
proof:
cases:
t1 t2 t3 t4 t5 t6
h1 h2 h3 h4 h5 h6  12 of those
tail and even:
t2 t4 t6  3 of those
prob = 3/12 = 1/4
explain why you thought it was 1/3.