content area top Part 1 The graph to the right is the uniform density function for a friend who is x minutes late. Find the probability that the friend is at least 21 minutes late. 0 10 20 30 1/30 0 Time (min) Density X A probability density function has a horizontal axis labeled "X" and "Time (minutes)" from 0 to 35 in intervals of 5 and a vertical axis labeled "Density" from 0 to StartFraction 1 over 30 EndFraction plus. The probability density function is a rectangle from 0 to 30 with a height of StartFraction 1 over 30 EndFraction. Question content area bottom Part 1 The probability that the friend is at least 21 minutes late is enter your response here