Exam (elaborations)
Iop2601 Assignment 1 semester 1 2023
- Institution
- University Of South Africa (Unisa)
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3/29/23, 3:23 PM Assessment 1: Attempt reviewMENU
Dashboard / My courses / IOP2601-23-S1 / Welcome Message / Assessment 1
Started on Wednesday, 29 March 2023, 2:44 PM
State Finished
Completed on Wednesday, 29 March 2023, 3:23 PM
Time taken 39 mins 36 secs
Grade 24.00 out of 30.00 (80%)
Question 1
Incorrect
Mark 0.00 out of 1.00
Measures of variability help us understand where the midpoint of a group of scores is. Is this statement true or false?
A. True.
B. False.
Measures of variability help us understand how widely dispersed the numbers in a dataset are. Go through Lesson 3 in the prescribed book
by Tredoux and Durrheim (2019). Also refer to page 52 of the study guide, Lesson 6.
Measures of variability help us understand how widely dispersed the numbers in a dataset are. Go through Lesson 3 in the prescribed book
by Tredoux and Durrheim (2019). Also refer to page 52 of the study guide, Lesson 6.
The correct answer is: False.
Question 2
Correct
Mark 1.00 out of 1.00
The X-axis is placed at the left (vertical line) of the graph. Is this statement true or false?
A. True.
B. False.
Well done
Refer to tutorial 24 of Tredoux and Durrheim (2019), and Lesson 3
The correct answer is: False.
https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=8590466&cmid=592693 1/15
,3/29/23, 3:23 PM Assessment 1: Attempt review
Question 3
Correct
Mark 1.00 out of 1.00
MENU
The horizontal line of the graph is also known as the _______.
Dashboard / My courses / IOP2601-23-S1 / Welcome Message / Assessment 1
A. X-axis
B. Y-axis
C. F-axis
D. vertical-axis
Well done
Refer to tutorial 24 of Tredoux and Durrheim (2019), and Lesson 3
The correct answer is:
X-axis
Question 4
Correct
Mark 1.00 out of 1.00
The most frequently occurring score in a distribution is called the ______.
A. mode
B. mean.
C. range
D. median
Go through Tutorial 3 of Tredoux and Durrheim (2019). Also refer to your study guide, Lesson 5, page 48.
The correct answer is: mode
https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=8590466&cmid=592693 2/15
,3/29/23, 3:23 PM Assessment 1: Attempt review
Question 5
Correct
Mark 1.00 out of 1.00
MENU
Unimodal distributions have two modes, while bimodal distributions have only one mode. Is this statement true or false?
Dashboard / My courses / IOP2601-23-S1 / Welcome Message / Assessment 1
A. True.
B. False.
Well done
Unimodal distributions have only one mode, while bimodal distributions have two modes.Go through Tutorial 3 of Tredoux and Durrheim
(2019). Also refer to your study guide, Lesson 5, page 50.
The correct answer is: False.
Question 6
Correct
Mark 1.00 out of 1.00
______ variables indicate that there is a difference between categories of objects, persons, or characteristics.
A. Ordinal
B. Interval
C. Nominal
D. Ratio
Well done
This is explained in Tutorial 1 of the textbook.
The correct answer is: Nominal
https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=8590466&cmid=592693 3/15
, 3/29/23, 3:23 PM Assessment 1: Attempt review
Question 7
Correct
Mark 1.00 out of 1.00
MENU
With research knowledge you will be able to ________.
Dashboard / My courses / IOP2601-23-S1 / Welcome Message / Assessment 1
A. solve problems
B. answer questions in a meaningful way
C. positively influence your organisation’s bottom line
D. a, b, and c
Well done
This is explained on page 5 of the study guide, Lesson 1
The correct answer is:
a, b, and c
Question 8
Correct
Mark 1.00 out of 1.00
A range is that score above and below which 50% of the scores in a sample fall. Is this statement true or false?
A. True.
B. False.
well done
See page 54 of the study guide, Lesson 6.
The correct answer is: False.
Question 9
Incorrect
Mark 0.00 out of 1.00
_____ is the difference between the highest and lowest score in a dataset.
A. Range
B. Standard deviation.
C. Mode.
D. Variance
Go through Lesson 3 in the prescribed book by Tredoux and Durrheim (2019). Also refer to page 54 of the study guide, Lesson 6.
Go through Lesson 3 in the prescribed book by Tredoux and Durrheim (2019). Also refer to page 54 of the study guide, Lesson 6.
The correct answer is: Range
https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=8590466&cmid=592693 4/15
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