Consider the following probability distribution for stocks a and b: state probability return on stock a return on stock b 1 0.10 10 % 8 % 2 0.20 13 % 7 % 3 0.20 12 % 6 % 4 0.30 14 % 9 % 5 0.20 15 % 8 % the variances of stocks a and b are _____ and _____, respectively.

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