An unbiased coin is tossed n times. The probability of getting at least one tail is p and the probability of at What is the value of n ?

Step-by-step solution

p-q= 5 32 aligned & 1- ( 1 2 )^n- [1- ( 1 2 )^n- n 2^n ] & = 5 32 & n 2^n & = 5 32 & n 2^n & = 5 2^5 aligned Comparing both sides, we get, n=5