If a coin is tossed four times then the probability that head appears at least once is

If a coin is tossed four times then the probability of getting tails at least once is

If a coin is tossed four times then the probability of getting tails at least once is

If a fair coin is tossed 8 times , then the probability that it shows heads at least once is

(i) A coin is tossed 7 times. What is the probability that head appears an odd number of times ? (ii) A coin is tossed 7 times. What is the probability that tail appears an odd number of times ? (iii) A coin is tossed 5 times. What is the probability that head appears an odd number of times ?

A fair coin is tossed n times, then what is the probability that H (Head) has appeared at least once ?

A fiar coin is tossed 18 times. Find the probability that it shows least once.

A fair coin is tossed n times. The probability of getting head at least once is greater than 0.8. Then the least value of n is -

A coin is tossed 7 times. Then the probability that at least 4 consective heads apear is