Intro to Statistics

Which of the following statements are TRUE?

i. Number of children aged below 18 is a moderator

ii. Income is a mediator

iii. Number of children aged below 18 is an intervening variable

iv. Movie streaming platform decision is a dependent variable

• i & iv

• i & ii

• ii & iii

• iii & iv

A study was conducted at a local college to analyse the average cumulative GPA’s of students who graduated last year.  

The cumulative GPA of one student who graduated from college last year refer to;

• Data

• Variable

• Parameter

• Statistic

A study was conducted at a local college to analyse the average cumulative GPA’s of students who graduated last year.  

3.65, 2.80, 1.50, 3.90 refers to

• Data

• Statistic

• Variable

• Parameter

A study was conducted at a local college to analyse the average cumulative GPA’s of students who graduated last year.  

A group of students who graduated from the college last year, randomly selected, refer to;

• Variable

• Data

• Sample

• Population

A study was conducted at a local college to analyse the average cumulative GPA’s of students who graduated last year.  

The average cumulative GPA of students who graduated from the college last year refer to;

• Statistic

• Parameter

• Variable

• Data

A study was conducted at a local college to analyse the average cumulative GPA’s of students who graduated last year.  

All students who graduated from the college last year refer to;

• Sample

• Variable

• Population

• Parameter

A study was conducted at a local college to analyse the average cumulative GPA’s of students who graduated last year.  

The average cumulative GPA of students in the study who graduated from the college last year refer to;

• Sample

• Data

• Parameter

• Statistic

While conducting his survey, Lucas chose his respondent by ensuring that they were those who cound provide him with the dta need for his study. The type of non-probability sampling that he utilized is known as:

• Snowball sampling

• Judgemental sampling

• Snowball sampling

• Quota sampling

What is the main difference between probability and non-probability sampling?

• Probability sampling involves the need for the computation of a sample via certain equations

• Non-probability sampling is prefered in qualitative research

• Randomization is involved in probability sampling

• Non-probability sampling is more appropriate for interviews

Data that is separated into categories falls under which level of measurement?

• Ordinal

• Interval

• Nominal

• Ratio