Final answer:
The probability of flipping tails both times when flipping a fair coin twice is 0.25 or 25%.
Step-by-step explanation:
The probability of flipping tails on a fair coin is 0.5. Since Kendra is flipping the coin twice, we can calculate the probability of flipping tails both times by multiplying the individual probabilities together. So, the probability is 0.5 * 0.5 = 0.25. This means there is a 25% chance that Kendra will flip tails both times.