Pick a number from 1 to 10. What is the probability
that you picked an odd number?
are five odd numbers between 1 and 10.
The probability is 5:10. Or you can express it as a fraction: 5/10.
Since it's a fraction, why not reduce it? The
probability that you will pick an odd number is 1/2.
Probability can also
be expressed as a percent...1/2=50%