The box contains following numbers:
0 1 2 3 4 5 6
Average=3 SD=2
a) Two draws are made randomly without replacement from the numbers in the box above. The chance that the sum of the draws is equal to 1 is?
b) Six draws are made randomly without replacement. The chance that the sum of the draws is equal to 15 is?
c) 100 draws are made with replacement. The chance that the sum of the draws is 330 or more is?