Let X be a normally distributed random variable with mean 410 and standard deviation 2. Find the probability that X will be between 407 and 415.
Answer to relevant QuestionsIf X is normally distributed with mean 500 and standard deviation 20, find the probability that X will be above 555. The number of votes cast in favor of a controversial proposition is believed to be approximately normally distributed with mean 8,000 and standard deviation 1,000. The proposition needs at least 9,322 votes in order to pass. ...The daily price of orange juice 30-day futures is normally distributed. In March through April 2007, the mean was 145.5 cents per pound, and standard deviation = 25.0 cents per pound.4 Assuming the price is independent from ...Let X be a normally distributed random variable with mean 600 and variance 10,000. Find two values x1 and x2 such that P(X > x1) = 0.01 and P(X < x2) = 0.05. An advertising research study indicates that 40% of the viewers exposed to an advertisement try the product during the following four months. If 100 people are exposed to the ad, what is the probability that at least 20 of ...
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