Question: Online holidays sales in 2019 is a random variable, which has a Normal distribution with mean =120, and standard deviation is 15 , both in

Online holidays sales in 2019 is a random

Online holidays sales in 2019 is a random variable, which has a Normal distribution with mean =120, and standard deviation is 15 , both in billion dollars. What is the probability that online sales will be between $100 billion and $140 billion? 0.7843 0.8176 0.8341 0.7144

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