Question: D. (Continuous Random Variable) You have experiment results which you know are normally distributed. The mean of the results is 50, and the standard deviation

D. (Continuous Random Variable) You have experiment results which you know are normally distributed. The mean of the results is 50, and the standard deviation is 5

D1. What is the probability that one randomly selected result is smaller than 40?

D2. What is the probability that one randomly selected results is greater than 60?

D3. What is the probability that one randomly selected result is between 40 and 60?

D4. What is the probability that one randomly selected result is below 40 OR above 60?

D5. What are the critical values in which 90% of your results fall into? In other words, what is the 90% confidence interval for the result values?

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