Exam (elaborations)
IOP2601
- Course
- IOP 2601 (IOP2601)
- Institution
- University Of South Africa (Unisa)
Exam of 6 pages for the course IOP 2601 at Unisa (IOP EXAM)
[Show more]
Content preview
MEMO FOR MAY/JUNE 2016SECTION 1 (suggested solutions)
1 .True
𝑁+1 8+1
2. Median = = =4.5
2 2
9+11
Therefore median = =10
2
3.range of the distribution =highest score – lowest score=13-4
Therefore range = 9
4.N=8
5.True
20
6. prob friend winning first price =150 =0.13
35
7. prob self winning first price=150 =0.23
8.True
9.dependable variable
10.∑x² = 195
11. .∑y² =306
12.mode for X distribution = 7
13. False
14.False
15. Sample
16. Null hypothesis
17. critical value of t0.01 (39)=2.7079
18. Yes
19. Interval
20.negative
, SECTION 2 (suggested solutions)
QUESTION 1
(a) 0.62 moderate positive relationship
(b) deduction : If students perform well in assignment 1 ,they can also perfom well in
assignment 2.
(c) common variance:
/ r = 0.62
r²= 0.3844 x 100%
r²= 38.44%
38.44%
(d) intercept: a = Ÿ -bX
= 4.67-(0.53)(6.91)
= 4.67-3.6623
= 1.0077
= 1.01
(e) regression : Ŷ= bX + a
= (0.53)(6) +1.01
=3.18+1.01
=3.21
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 EFT, 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 this summary 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 this summary for R100,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
65646 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 15 years now
