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Statistics Problem?

Im completely stumped on this statistics problem in my math class. Ive tried every formula they've taught in the lesson to no avail. I got the answer correct by guessing but the test is all over these types of questions. 

Update:

Removed anon

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1 Answer

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  • rotchm
    Lv 7
    2 months ago

    Hint: unanon yourself and we will further help you. There is no need to be anonymous here. And besides if you are not Anonymous, would we would be able to follow you and to adapt our answers to your level.

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