Tamara flips a fair coin four times..a) Determine the probability that all four flips are heads.b) Determine the probability that at least two of the flips are heads?

Answer 1

All are heads: ½ × ½ × ½ × ½ = 1/16

at least 2 are heads = not 3 are tails and not 4 are tails: 1 - 4/16 - 1/16 = 11/16

possibilities of only 3 tails: ttth ttht thtt httt

possibility of 4 tails: tttt

Answer 2

a) 50/50

b) Errm... (loooooong awkward silence) maybe 50/50??

Answer 3

a. 1/16

B. 6/16

Answer 4

A) 1/16

B) ????

Answer 5

7 tails 4 heads

Answer 6

hi

Answer 7

The answer is 1/16.

Answer 8

1

16

Answer 9

a) 25%

b) 25%

Answer 10

it would be 1/16