Help find a and B please! Part b is the same "probability and odds for"Thank u!!!

Points: 0.25 of 1 A pair of dice are rolled 1,000 times with the following frequencies of outcomes: Sum 2 3 5 6 7 8 9 10 11 Frequency 12 10 30 50 70 110 150 170 140 120 80 70 Use these frequencies to calculate the approximate empirical probabilities and odds for the events a. The sum is less than 3 or greater than 9. b. The sum is even or exactly divisible by 3. a. Probability = (Type a decimal.) Odds for = (Type a fraction. Simplify your answer.)