The graph to the right is the uniform probability density function for a friend who is x minutes late. (a) Find the probability that the friend is between 20 and 30 minutes late. (b) It is 10A.M. There is a 10% probability the friend will arrive within how many minutes? (a) The probability that the friend is between 20 and 30 minutes late is (Type an integer or a decimal. Round to three decimal places as needed.) Density 1/30- Q Q 0+ 0 10 20 30X Time (min)