At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

The mean of a normal probability distribution is 500; the standard deviation is 10.

a.About 68% of the observations lie between what two values?
b.About 95% of the observations lie between what two values?
c.Practically all of the observations lie between what two values?