WorksheetsIntro to Statistics
Total questions: 20
Worksheet time: 7mins
What is an independent variable?
A variable that is impacted by the other variable that gets measured
A variable that never changes to reduce errors in an experiment
A variable that is not impacted by the other variable that does change
A variable that is impacted by the other variable that does not change
Which of the following are true about a dependent variable?
It is the outcome of an experiment
It is what is being measured
It is not impacted by the other variables
It stays constant to show comparison
All of the above
If the distance to the road is closer then the soil salinity would be higher during winter. What is this statement considered?
Variable
Hypothesis
Independent variable
Constant
What is a variable ?
A characteristic that does not change
A characteristic that is not part of the experiment but an outside factor
A characteristic that changes based only on time and gender
A characteristic that changes for an experiement
What is a sample?
A representation of a population in a research study when the population is too large
The entire population being observered
An outcome of an experiement
The part of the experiment being manipulated
Which of the following are discrete variables?
Number of students in a class
Time it takes to get to class
Weight of a puppy
Number of yellow marbles in a jar
All of the above
Which of the following represents a continuous variable?
Weight of a puppy
Number of students who are in class
Time it takes to run a mile
The grade levels of a student
What of the following defines a discrete variable?
A finite number of values
An infinite number of values
The time it takes to drive to school
Change occurs over time
Which of the following defines a continuous variable?
The number of marbles in a jar
The outcome of an experiment
A variable that has a finite number of possible values.
A variable that has an infinite number of possible values.
Boundaries located exactly halfway between adjacent categories.
True
False
What must researchers do to establish relationships between variables?
Record the observations
Create a hypothess
Observe the varibales
All of the above
What are the types of measuring scales?
Nominal Scale
Ratio Scale
Ordinal Scale
Interval Scale
All of the above
(29)2 -25+181
Which of the following would you operate first?
+181
-25
(29)2
What does "n" represent?
The number of scores of measurements
The total population
"Sum of"
None of the above
The method used for organizing and summarizing data.
Descriptive Statistics
Population
Variables
None of the above
Define Parameter
Table/ graphs
A descriptive value for a sample
A descriptive value for a population
The mean of an experiement
The measurements are obtained in a research study; raw information.
True
False
A non-experimental study does not utilize which of the following?
Data
Independent Variables
Hypothesis
Samples
What does the notation "x" represent?
"Sum of"
Total population
A sample
Individual measurements obtained from research
What is an experiment?
Something that is not being manipulated
Demonstration of a cause & effect relationship between 2 variables
A timeline of events
None of the above
