Question

you toss 2 coins, Find P(at least 1 head is tossed)

Please help!

Answer 1

Tossing two coins, there are four possible outcomes:

HH
HT
TH
TT

Three of the four have at least one head. That means your probability is 3/4, or 75%.

Answer 2

thank you (:

Answer 3

No problemo.

Answer 4

at least 1 head is tossed is the same as not 2 tails)

P(TT)^c = 1- P(TT) = 1- 0.5 * 0.5 = 3/4

This would be useful if the question were.

if a coin was tossed 100000 times get the probability of at least one head. no way you're counting that.