janie flips a coin 70 times and records if it comes up heads. if getting heads is a success, what is the…

janie flips a coin 70 times and records if it comes up heads. if getting heads is a success, what is the probability of a failure?\n0.2\n0.5\n0.7\n1.00

janie flips a coin 70 times and records if it comes up heads. if getting heads is a success, what is the probability of a failure?\n0.2\n0.5\n0.7\n1.00

Answer

Explanation:

Step1: Identify coin - flip probabilities

A fair coin has 2 possible outcomes (heads or tails).

Step2: Define success and failure

Success is getting heads, failure is getting tails.

Step3: Calculate probability of failure

The probability of getting tails in a single fair - coin flip is $\frac{1}{2}= 0.5$. Each flip is an independent event, so the probability of failure in any single flip (or in multiple flips) remains the same for a fair coin.

Answer:

B. 0.5