3.(16 points) Three identical chips, each with number 1 on one side and number 2 on the other side, are tossed simultaneously. Assume that all possible outcomes are equally likely to occur. a.Write the sample space by listing all elementary events.(8 points) b.What is the probability of observing the sum of the numbers is equal 1 to 3? (4 points) c.Find the probability of observing the sum of the numbers is 4 or more?(4 points)