Question

Find the probability of getting two heads and one tail on a toss of three fair coins

Answer 1

possible outcomes are HHT, HTH, THH
probability of H or tail n one toss is 1/2
probability of each of the above 3 outcomes = 1/2 * 1/2 * 1/2
probability of one of the possible out are now added

Answer 2

last line should read

probability of one of the possible outcomes are now added

Answer 3

do you follow that?

Answer 4

when events are independent the probabilities are multiplied:
eg
i throw H AND T AND H
probability of this is 1/2 * 1/2 * 1/2
AND = multiply

where events are mutually exclusive probabilities are ADDED

HTH OR THH

= 1/8 + 1/8

OR = ADD

Answer 5

you still there?

Answer 6

Sorry, yes I understood. Thank you for your help :)

Answer 7

yw