A jar contains 6 red marbles numbered 1 to 6 and 10 blue marbles numbered 1 to 10. A marble is drawn at random from the jar. Find the probability of the given event please show your answer as reduced fractions

a. The marble is red P(red)

b. The marble is odd-numbered. P(odd)

c. The marble is red or odd numbered. P(red or odd)

d. The marble is blue or even numbered. P(blue or even)