Select the correct answer. If A and Bare dependent events, which of these conditions must be true?
O A P(A and B) = P(A) + P(B)
OB. P(A and B
P(A)
P(B)
OC. P(B|A) = P(8)
OD. P(AB) = P(A)
O E. P(BA) = P(B)
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Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?