" 7.A coin is tossed twice,what is the probability of getting tails."

A coin is tossed. What is the probability of getting: a tail?

A coin is tossed once. What is the probaility of getting a tail?

A coin is tossed twice. Find the probability of getting: two tails

A coin is biased so that a head is twice as likely to occur as a tail. If the coin is tossed 3 times, what is the probability of getting 2 tails and 1 head?

A coin is tossed once. Find the probability of getting a tail.

A coin is tossed twice. What is the probability of getting exactly one head ?

A coin is tossed twice. What is the probability of getting exactly one head ?

A coin is tossed twice, what is the probability that etleast on tail occurs?