A die is thrown five times. If getting an odd number is a success, then the probability of getting at least 4 successes is

Step-by-step solution

Here, n=5, p= 1 2 , q= 1 2 Probability of getting at least 4 successes aligned & P ( x =4 or x =5)= ^5 C ₄ ( 1 2 )^4 ( 1 2 )^1+ ^5 C ₅ ( 1 2 )^5 ( 1 2 )^ & =5 1 16 1 2 +1 1 32 1 & = 5 32 + 1 32 & = 6 32 = 3 16 aligned