Other
IOP2601
- Course
- Institution
WRKOBOOK MEMO + ANSWERS
[Show more]
Seller
Follow
LLL56
Reviews received
Content preview
_________________________________________IOP2601
ORGANISATIONAL RESEARCH METHODS
Workbook _Memo
_________________________________________
, DESCRIPTIVE STATISTICS
BASIC MATHEMATICAL CALCULATIONS S3
SUMMATION NOTATION/SOMMASIE-NOTASIE
We are now working with the first set of ungrouped data that we provided on the first page.
Ons werk nou met die eerste stel data of ongegroepeerde data wat ons op die eerste bladsy verskaf het.
Complete the table by doing all the summation notations (SU 3, Tutorial 24).
Voltooi die tabel deur al die sommasie-notasie (SE 3, Tutorial 24) te doen.
For all the computations you need to do later on, you will only substitute the values in this summation
table in the different formulas. So make sure that you work very accurately and that all your calculations
are correct.
Vir al die berekeninge wat jy later moet doen, is dit net nodig om die waardes in die formules te vervang.
Maak dus seker dat jy akkuraat werk en dat al jou berekeninge korrek is.
X = Score on assignment question/Punte vir werkopdragvraag
Y = Score on examination question/Punte vir eksamenvraag
Student X Y X² Y² XY
A 1 5 1 25 5
B 2 4 4 16 8
C 2 5 4 25 10
D 2 6 4 36 12
E 3 8 9 64 24
F 4 7 16 49 28
G 5 8 25 64 40
H 7 7 49 49 49
I 7 8 49 64 56
J 8 8 64 64 64
N = 10 ΣX = 41 ΣY = 66 ΣX² = 225 ΣY² = 456 ΣXY = 296
(ΣX)² = (41)² = 1 681
(ΣY)² = (66)² = 4 356
ΣXΣY = (41)(66) = 2 706
-2-
, DISPLAYING DATA SU 4
UNGROUPED DATA/ONGROEPEERDE DATA
We obtained two sets of data (X and Y) from IOP2601 students. The X-scores represent a question from
an assignment and the Y-scores a similar question from the examination paper.
Student X Y
A 1 5
B 2 4
C 2 5
D 2 6
E 3 8
F 4 7
G 5 8
H 7 7
I 7 8
J 8 8
FREQUENCY TABLE/FREKWENSIETABEL
• ASSIGNMENT SCORES/WERKOPDRAGPUNTE
X f
1 1
2 3
3 1
4 1
5 1
7 2
8 1
N = 10
• EXAMINATION SCORES/EKSAMENPUNTE
Y f
4 1
5 2
6 1
7 2
8 4
N = 10
-3-
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LLL56. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.81. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82191 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now