Apple claims that with a fully charged battery, its newest iPhone X allows for up to 12 hours of internet use. The minimum battery life is 9.5 hours. Assume that for a randomly selected iPhone X, battery life is uniformly distributed between 9.5 and 12 hours. The density function of this uniform probability distribution is given in the figure below.

For values of battery life between 9.5 and 12 hours, the density is 0.4. For all other values of battery life, the density is 0.

1.For a randomly selected iPhone X, what is the probability that the battery life is larger than 11 hours? Indicate this probability in the figure above, and calculate it.