The digits o through 9 are written upon slips of paper. An experiment includes randomly choosing one numbered slip of paper. Find out the probability of each event in a, b, and c
a. obtaining a prime number
b. obtaining a number divisible by 4
c. obtaining an odd number.
a. P(A U C)
b. P( A U B)
c. P (B U C)
d. Are events A and C independent? explain why.