A number cube is rolled and a coin is flipped. Predict how many times you would get heads and a number less than 3
A) 60
B) 40
C) 30
D) 20

Respuesta :

it would be about 25 percent of the time i believe
but i would need the total number of times they were flipped/rolled to tell you the number of times it is.
First the probability of getting a heads and a number less than three 
well the probability of getting heads is 1 in 2 and the probability of getting a number less than 3 is 2 in 6. To find the probability of them occurring together you just multiply 1/2 * 1/3 = 1/6. Now find 1/6 of 240 and that winds up to be 40