Sally flips a coin and rolls a dice. What is the pobability she gets an even number and heads?

Answer 1

even no=1/2
heads=1/2
so even no and heads=1/2*1/2=1/4

Answer 2

Raj is right. Your question is even on one flip AND one roll. 1/2 for the coin, 1/2 for the dice = 1/4

odd dice/odd coin = X
odd dice/even coin = X
even dice/odd coin = X
even dice/even coin = Y

Those are your only possibilities: 1 chance in 4.

You wrote "a dice." According to Merriam-Webster dictionary, "dice" is the plural form of "die", which is a cube with dots on it. If your question is about throwing ONE of those cubes ("a die") AND flipping a coin, then the possibility is 1/4.

If you are throwing exactly TWO of those cubes ("dice") AND flipping a coin, then the answer is (1/2 x 1/2 x 1/2 =) 1/8.

I know, nit-picky. I use "dice" when I mean one like most everyone. I wasn't sure if this was a trick question by an evil teacher, or merely an oversight.

Some people have answered your question as two parts: flipping a coin and rolling a die. Each part is 1/2. But to get heads AND an even number, the answer is (1/2 x 1/2 =) 1/4.

Answer 3

Section 1:

When you roll a dice, the sample space is {1,2,3,4,5,6} since a dice has 6 sides. The even numbers in the sample space above is {2,4,6}. So, we need to find out what is the probability that she get 2,4 or 6.

Probability that she gets any number is 1/6.
Probability she might get 2,4,6 is 1/6+1/6+1/6 = 3/6 = 1/2

Section 2: Probability she gets head.

Since we are flipping once, the probability is 1/2 (When you flip, you can get 50% Head and 50% Tail

p(E) = 1/2

This is what I think

Answer 4

Probability of getting heads is 1/2, Probability of getting an even number is 1/2. Probability of getting both is the product of the two individual probabilities. 1/2 * 1/2 = 1/4.

Answer 5

1/4

Answer 6

1 / 2 & 1 / 2, which is 1 / 4.

Answer 7

heads 1/2
even # 3/6 =1/2

Answer 8

p(even and head) = (3/6)(1/2) = 1/4

Answer 9

for heads-1/2 and for even number-3/6 i.e. 1/2

Answer 10

coin (heads/tails) 1/2

die (1,2,3,4,5,6; 3 odds) 1/2

1/2 * 1/2 = 1/4