QUIZ
Assessment 1
Started on Wednesday, 6 August 2025,
State Finished
Completed on Wednesday, 6 August 2025,
Time taken
Grade 30.00 out of 30.00 (100.00%)
Question 1
Study the four graphs below, and then answer the question that follows.
Which one of the four graphs is positively skewed and unimodal?
A.
The graph on top left.
B.
The graph on top right.
C.
The graph on bottom right.
D.
The graph on bottom left.
Feedback
Go through Figure 2.8 in Tutorial 2 of Tredoux and Durrheim (2019). Also refer to
your study guide, Lesson 4, from page 39.
Question 2
The standard deviation of a set of data can never be a negative number. Is this
statement true or false?
A.
True.
B.
False.
Feedback
1
, 2025 – S2 – IOP2601 – ASSESSMENT 1 – Q&A
The standard deviation can never be a negative value. If you have obtained a
negative answer, you have definitely made a mistake. Refer to the hint on page 59 of
the study guide, Lesson 6.
Question 3
Which one of the following statements is true about IOP2601?
A.
The module mainly focuses on drawing conclusions about the relationships of
variables.
B.
The module entails techniques of collecting and interpreting research information.
C.
The module focuses predominantly on the fourth step of the research process.
D.
The module focuses on identifying research questions and drawing conclusions.
Feedback
Figure 2 on page 5 of the study guide illustrates data analysis as the research step
that IOP2601 focusses on. Also, read the explanation provided on the next
page, Lesson 1.
Question 4
The ______ is the arithmetic average of a group of numbers.
A.
median
B.
mean.
C.
mode
D.
range
Feedback
Go through Tutorial 3 of Tredoux and Durrheim (2019). Also refer to your study
guide, Lesson 5, page 44.
2