What is the variance of a data set with values 3, 7, 12, 15, 20?
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What is the product of logarithm of 5 to the base 10 and the logarithm of 2 to the base 10?
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Math question: In a game, Player A moves 20 units north and 30 units east, while Player B moves 40 units south and 15 units west. What is the net displacement (magnitude and direction) between them?