need help with this What is the chance or probability of ran

need help with this

What is the chance or probability, of randomly choosing a permutation of the ten digits 0, 1, 2,..., 9 in which an odd digit is in the first position and 1, 2, 3, 4, or 5 is in the last position?

Solution

probability of selecting odd digit is 1/2 and probability of selecting 1,2,3,4,5 is 1/2 hence 1/2.1/2=1/4