If X is a normally distributed random variable with mean 97 and standard deviation 10, find x2 such that P(102 < X < x2) = 0.05.
Answer to relevant QuestionsLet 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. Find the probability that a standard normal random variable will be between 2 and 3. A large state university sends recruiters throughout the state to recruit graduating high school seniors to enroll in the university. University records show that 25% of the students who are interviewed by the recruiters ...An analyst believes that the price of an IBM stock is a normally distributed random variable with mean $105 and variance 24. The analyst would like to determine a value such that there is a 0.90 probability that the price of ...Total annual textbook sales in a certain discipline are normally distributed. Forty-five percent of the time, sales are above 671,000 copies, and 10% of the time, sales are above 712,000 copies. Find the mean and the ...
Post your question