11. [-/3 Points ] DETAILS STATSBYLO1 10.2C.010.CH.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The following pie chart gives the eye color of all students in a large school district. Eye Color Browf 40% Other Blue 10% 30% Green LA USE SALT (a) If a student is selected at random, what is the probability he/she does not have brown eyes? (b) Suppose a simple random sample of 50 students from this district is selected. What is the probability that at least half of them have brown eyes? (Use SALT. Round your answer to three decimal places.) (c) Suppose a simple random sample of 50 students from this district is drawn. What is the probability that at least half of them have either brown or green eyes? (Use SALT. Round your answer to three decimal places.)