It is known that people in the USA spend on average 16 hours a day using electronic devices with a standard deviation of 3.5 hours. This data follows a normal distribution. What is the probability someone spends less than 20 hours using electronic devices a day if it is known that they spend more than 13 hours using electronic devices a day? (round your answer to 4 decimals) (Hint: Normal distribution and conditional probability) A. 0.8421 B. 0.3874 C. 0.9250 D. 0.1957

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