SOLUTION: an experiment consist of a selecting a number at random from a set of numbers {1, 2, 3, 4, 5, 6, 7, 8, and 9}. Find the probability that the number selected is: a) less than 4

Algebra ->  Probability-and-statistics -> SOLUTION: an experiment consist of a selecting a number at random from a set of numbers {1, 2, 3, 4, 5, 6, 7, 8, and 9}. Find the probability that the number selected is: a) less than 4       Log On


   

Question 1078014: an experiment consist of a selecting a number at random from a set of numbers {1, 2, 3, 4, 5, 6, 7, 8, and 9}. Find the probability that the number selected is:
a) less than 4
b) Odd
c) grater than 4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Each number has a probability of P=1%2F9 of being chosen.
a) Less than 4 would be {1,2,3} so,
P=1%2F9%2B1%2F9%2B1%2F9=3%2F9=1%2F3
.
.
b) There are 5 odds numbers {1,3,5,7,9} so,
P=5%281%2F9%29=5%2F9
.
.
c) Greater 4 would be {5,6,7,8,9} so,
P=5%281%2F9%29=5%2F9