The probability of an interval [a, b] , where -1 ≤ a ≤ 1 is "\\frac{1}{2}(b-a)"
"P(B) = P(-0.5, 1) = \\frac{3}{4} \\\\\n\nP(A \\cap B) = P(-0.5, 0) = \\frac{1}{4} \\\\\n\nP(A \\cap C) = P(\\oslash ) = 0 \\\\\n\nP(A \\cup B) = P(-1, 1) = 1 \\\\\n\nP(A \\cup C) = P((-1,0) \\cup (0.75, 1)) = \\frac{5}{8} \\\\\n\nP(A \\cup B \\cup C) = P(-1,1) = 1"
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