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January 31, 2026, 12:19:49 am
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Author Topic: Probability Question  (Read 545 times)  Share 

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Flaming_Arrow

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Probability Question
« on: October 06, 2009, 08:39:12 pm »
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for what values of x would 95% of the shots fall within?

the way my teacher taught me how to do this was to x= Inverse normal 0.025 with mean and sd and x= inverse normal with 0.975 but i also realise it is 2 sd's withtin the mean which yields a slighty different answer from my teacher's way, so which one is correct?
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TrueTears

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Re: Probability Question
« Reply #1 on: October 06, 2009, 08:40:39 pm »
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Remember one way is an approximation only.
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Ilovemathsmeth

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Re: Probability Question
« Reply #2 on: October 09, 2009, 09:37:12 pm »
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Yeah it's advised to use the invnorm function unless you're in exam 1 or you have been specifically told, 'using the 68-95-99.7% rule'
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