a) Probability of the selection being a red marble is: 0.55
b) The probability of the selection being an odd number is: 0.5
c) The probability of the selection being red or ann odd number is: 0.275
How to find the Probability of Selection?
We are given that:
Number of red marbles = 12
Number of blue marbles = 10
Total number of marbles = 10 + 12 = 22
a) Probability of the selection being a red marble is:
P(red) = 12/22 = 0.55
b) The probability of the selection being an odd number is:
P(odd) = (11/22) = 0.5
c) P(red or odd) = 0.55 * 0.5 = 0.275