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Re: Statistics Questions

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Ithesportsbomb is not online. Ithesportsbomb
Joined: 03 Dec 2010
Total Posts: 30128
01 Feb 2017 08:12 PM
I started a test today and I have tomorrow to finish, so I have some questions (4)

-How to find Z-score given Mean and Standard Deviation
-How to calculate a question like: "What is the lowest score John can have and still be in the top 25%"?
-How to find normal distribution for the mean and standard deviation given "n" and "p"
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Ithesportsbomb is not online. Ithesportsbomb
Joined: 03 Dec 2010
Total Posts: 30128
01 Feb 2017 08:15 PM
alright i figured out the first question but i need help on the next two jimbo i know your nerd ### is on here
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Ithesportsbomb is not online. Ithesportsbomb
Joined: 03 Dec 2010
Total Posts: 30128
01 Feb 2017 08:22 PM
i think ive figured out question #2
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TinyBerry3 is not online. TinyBerry3
Joined: 07 Jun 2008
Total Posts: 30001
01 Feb 2017 08:24 PM
You could probably find samples of these types questions online. When i took AP Stats these were pretty general ones. i would need a TI-84 with me to answer this though since I don't have it memorized. xd

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WaxNewton is not online. WaxNewton
Joined: 17 Mar 2010
Total Posts: 9209
01 Feb 2017 08:25 PM
in the top 25% there should be a value where it goes out of the top 25% and that value is the lowest or highest
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Ithesportsbomb is not online. Ithesportsbomb
Joined: 03 Dec 2010
Total Posts: 30128
01 Feb 2017 08:26 PM
yeah thats what im trying to do. if that fails ill just look through my book desperately tomorrow
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TinyBerry3 is not online. TinyBerry3
Joined: 07 Jun 2008
Total Posts: 30001
01 Feb 2017 08:43 PM
It would be 1 - the rest of the graph I'm pretty sure since it says "lowest score" meaning it wants those values and better.

Like if you got 80.5% you would do 1-.805 to get the right data range.
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TinyBerry3 is not online. TinyBerry3
Joined: 07 Jun 2008
Total Posts: 30001
01 Feb 2017 08:44 PM
Nvm what I said if it wants > 25th percentile.

You will get 1 answer for it ignore what I said.
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