contestada

Hannah rolls two number cubes with the numbers 555366 on each. What is the probability that she rollwd two numbers with an even sum?

Respuesta :

P(5 and 5)  = 1/2*1/2 = 1/4
P(3 and 5) = 1/6*1/2 = 1/12
P(5 and 3) = 1/12
P(3 and 3) = 1/6*1/6 = 1/36
P(6 and 6) = 1/3 * 1/3  = 1/9

Required probabilitty = 1/4 + 2*1/12 + 1/36 + 1/9  =   5/9  answer