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Elementary Statistics!

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Elementary Statistics!

Post  JFV on Sun Jan 18, 2009 3:28 pm

Hi all! May someone please solve for me the following two statistical problems: I would hugely appreciate the favor, thank you so much!

First problem:

Percipitation (inches) Find the Class Midpoint for each Find the Class Boundaries for each

1. 0.00-0.49 1. ? 1. ?
2. 0.50-0.99 2. ? 2. ?
3. 1.00-1.49 3. ? 3. ?
4. 1.50-1.99 4. ? 4. ?
5. 2.00-2.49 5. ? 5. ?
6. 2.50-2.99 6. ? 6. ?
Scroll down for the second problem!

Second problem:

Discarded plastic (weights) Find the Class Midpoint for each Find the Class Boundaries for each

1. 0.00-0.99 1. ? 1. ?
2. 1.00-1.99 2. ? 2. ?
3. 2.00-2.99 3. ? 3. ?
4. 3.00-3.99 4. ? 4. ?
5. 4.00-4.99 5. ? 5. ?
6. 5.00-5.99 6. ? 6. ?
7. 6.00-6.99 7. ? 7. ?
8. 7.00-7.99 8. ? 8. ?
9. 8.00-8.99 9. ? 9. ?
10. 9.00-9.99 10. ? 10. ?


Once again, from the bottom of my heart, thanks a million for all of your help!!! PLEASE, I'm pretty desperate here. If you have some level of awareness and intellegence when it comes to Elementary Statistics, then give my two problems a stab and a wack.

JFV

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Re: Elementary Statistics!

Post  bfrsoccer on Sun Jan 18, 2009 11:34 pm

After looking at this to see what "class boundary" is...

1. midpoint: (0.00+0.49)/2=.245; class boundary: (0.49+0.50)/2=.495

And, you can do something similar for the rest of them. Add each number in a group and divide by 2 to get the midpoint, and from the link I just mentioned, "The class boundary is the value that falls between the upper limit of one class and the lower limit of the next class."

If you have any more questions about this, feel free to post them. But I have to get back to my own homework right now. Razz
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STA2023!

Post  JFV on Mon Jan 19, 2009 11:17 am

Thank you so much for answering my first problem! Now, not to further take up anymore of your valuble time or anything of that sorts, but, what are your brief thoughts on my second statistical problem?

JFV

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Term Papers

Post  monti on Wed Apr 28, 2010 6:31 am

It’s great to see good information being shared.

Term Papers

monti

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Re: Elementary Statistics!

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