Use the formula for the probability of the complement of an event. A coin is flipped 4 times. What is the probability of getting at least 1 tail?

Answer: 15/16

Step-by-step explanation:

There will be 16 outcomes for 4 coins=2^4

Probability of only head is : P (C) = 1/16

P (C) + P (C') = 1

P (C') = 1 - P (C)

P (C') = 1 - 1/16

Take the l. c. m

P (C') = (16-1) / 16

P (C') = 15/16

So the probability of getting at least 1 tail is 15/16