Question

Find the probability of drawing an ace from a fair deck of 52 cards with a single draw.
4/13
1/13
1/4
1/52

Answer 1

there are 4 aces and 52 total cards
4/52 = 1/13

Answer 2

Find the probability of rolling the number five with a single toss of a fair six-sided die.
1/2
1/6
1/4
1/5

IS IT 1/6

Answer 3

there are six different numbers you can get: 1, 2, 3, 4, 5, and 6.
the probability of getting a 5 is 1/6. you're right.

Answer 4

Find the probability of rolling a sum of seven with a single toss of two fair six-sided dice.
0
1/7
1/6
1/9

Answer 5

IM THINKIN 1/6

Answer 6

okay, 36 combinations total (6*6 = 36)

you can roll

1 and 6
6 and 1
5 and 2
2 and 5
3 and 4
4 and 3

that's 6 possibilities.

6/36 = 1/6.
you're right.

Answer 7

Find the probability of getting all heads on a toss of three fair coins.
1/8
1/3
1/2
3/8

Answer 8

1/2 is the prboability of getting heads once.

3 times,

(1/2)(1/2)(1/2) = 1/8

Answer 9

*probability

Answer 10

If we toss three coins 240 times, how many times can we expect the coins to have three tails showing?
30
120
80
90

Answer 11

I DONT KNOW THIS ONE

Answer 12

(1/2)(1/2)(1/2) = 1/8 for 3 tails on 3 coins

1/8(240) = 30

Answer 13

Simplify: 4!
24
6
120
240

Answer 14

4! = 4(3)(2)(1) = 24