SOLUTION: PLEASE HELP!!! An animal clinic kept record of the life spans of certain poodles. The number of years the dogs lived are 8, 10, 12, 15, 17, and 13. What is the standard deviat

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Question 609605: PLEASE HELP!!!
An animal clinic kept record of the life spans of certain poodles. The number of years the dogs lived are 8, 10, 12, 15, 17, and 13. What is the standard deviation of the poodle life spans?

Answer by SwiftAlbatross(13) About Me  (Show Source):
You can put this solution on YOUR website!
First find the mean:
mu+=+%288+%2B+10+%2B+12+%2B+15+%2B+17+%2B+13%29%2F6+=+75%2F6+=+12.5
Then find the variance:
}
Then find the square root of the variance to get the standard deviation:
sigma+=+sqrt%288.9166667%29+=+2.98608