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| 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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| 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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| 01 Feb 2017 08:22 PM |
| i think ive figured out question #2 |
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| 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
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| Joined: 17 Mar 2010 |
| Total Posts: 9209 |
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| 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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| 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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| 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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| 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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