Question
The scientists believe that their breakthrough could
______ the future of renewable energy. The following question carries one statement with one blank. Choose the most appropriate word from the options to fill the blank.Solution
The word "revolutionize" means to change something fundamentally or dramatically, which aligns perfectly with the context of the sentence, suggesting that the scientists believe their breakthrough could significantly transform the future of renewable energy. The other options—"obscure" (make unclear), "hinder" (delay or prevent), and "maintain" (keep the same)—do not convey the positive, transformative impact implied by the breakthrough.
Given that E and F are events such that P(E) = 0.8, P(F) = 0.4 and P(E∩ F) = 0.2. Find P(F|E).
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If three socks are chosen at random, what is the probability that all are blue socks?
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