I was actually hoping to find a math teacher but here goes:Calculate the crime threshold the formula Calculate the mean average of the data setSubtract the mean average from each data pointSquare each of the differences obtained in the above stepSum the squares from the above stepDevide the total of the squares by the number of numbers in the original data set - the number that results from this deviation is known as the varience Find the square root of the varience to obtain the standard deviation.The crime figure for a specific crime in Giyani is 561 as on 1 January 2007 and the corresponding crime figure on 1 January 2008 is 422The crime figure for a specific crime in Welbekend is 121 as on 1 January 2007 and the corresponding crime figure on 1 January 2008 is 158Formula example: %Change= N30 __N30 -N20___ X100 N20
Searching the internet
Hi,Thank you for using JustAnswer.I'll be happy to help you with these calculations, and will answer any questions you may have about the procedure.For the question about the mean/variance/standard deviation, is there a data set available? I assume that the "crime figure" data goes with the percent change forumla.Thanks,Ryan
There is no data set available if i had that i would not have asked the question.
It seems to read that a formula was included in the problem. Am I mistaken?
I have included the formula %Change= N30 __N30 -N20___ X100.
I know the percent change formula (new-old)/old, but I thought there was a formula missing from the beginning of the problem where it says "Calculate the crime threshold the formula"Oftentimes, a student will copy and paste the problem, but the formula that follows that statement is an image that does not copy, so it is dropped. Please check that this is not the situation.If there is a formula there, I can help, otherwise the problem cannot be solved as written.
I'm sorry there must be one somewhere I will have a look again it might be a table does Just Answer have a link to where I can upload a document or maybe I can just copy and paste
Depending on your browser, you will have a paperclip icon above the chat box. If you do, you can upload directly from there. If not, you can use sendspace.com, wikisend.com, mediafire.com or any site like that and give the link to the file. I recommend the first, if you are not familiar with how they work.
I uploaded the information i could find but i can't see if its been uploaded
Did you upload it here or elsewhere?
I'm still trying to upload the form here but there's a problem with the website is the error I'm getting I will keep on trying
If you have a problem, go to sendspace.com and upload it there. Give me the link that it tells you to copy.
Thank you for the sendspace link i have uploaded the document http://www.sendspace.com/file/rjblz7Kind regards
The first document does not seem to be opening please try this one http://www.sendspace.com/file/4uvu4r
Both links worked. I got the image, but can you get me the page before that has the beginning of the problem, please?
Goodmorning i have uploaded the document requested.http://www.sendspace.com/file/ggv7zchttp://www.sendspace.com/file/ggv7zc
Please confirm that the information you are given about Giyani and Welbekend over the time period is the only information you are given.
Yes its the only information I was given and have
This leads me to believe that the information earlier on that page does not apply to this problem, and you are being asked for the percent change of the crime rate from one year to the next. The formula is (new-old)/oldGiyani: (422-561)/561 = -139/561 = -0.2478 = -24.78%Welbekend: (158-121)/121 = 37/121 = 0.3058 = 30.58%
Degrees in Math, Education and Accounting, years and years of tutoring.
That sound /is correct any help is greatly appreciated
Any time you need help, you can ask for me by name in the question, and I will be here.