What type of graph has the x axis "class boundaries" and the y axis "cumulative frequency?
Ogive
100
Classify as discrete or continuous: number of touchdowns at an Al Raby football game.
Discrete
100
Name 2 of the 4 sampling methods.
Random
Stratified
Systemic
Cluster
100
Identify as being experimental or observational.
A researched stood at a busy intersection to see if the color of the car a person drives is related to the running of red lights.
Observational
100
Is the following inferential or descriptive statistics:
“In the year 2013, 148 million American will be enrolled in an HMO.”
Inferential.
200
Name two types of bar graphs.
Pareto, Histogram
200
Classify as qualitative or quantitative: Marital status of the Raby teachers and staff.
Qualitative
200
Which sampling technique is displayed: “Every 100th hamburger manufactured is check to determine its fat content.”
Systemic
200
When designing an experiment what are the two types of groups you will have.
Control and treatment.
200
What important event happened in US Politics last night?
First presidential debate!
300
To make a histogram, ogive, and a frequency polygon, does the data need to be grouped or ungrouped?
Grouped
300
Is the temperature outside an ordinal or interval level measurement?
Interval
300
To discover how Raby students feel about uniforms Principal Spearman has decided to pick 10 freshmen, 10 sophomores, 10 juniors, and 10 seniors and survey them. What type of sampling is she using?
Stratified
300
Is the advantage of manipulating/controlling the independent variable available in a experimental study or an observation study?
Experimental.
300
What is a characteristic or attribute that can assume different values?
Variable.
400
When making a grouped frequency table, how do you find the class width?
Find the range, then divide by the number of classes.
400
Which type of measurement has no "true zero"?
Interval
400
What is a smaller part of the population that is meant to represent the whole called?
Sample.
400
True or false; An advantage of experimental studies is that you can do studies situations that would be unethical or dangerous to do in an observational study; such as suicide, rape, and murder.
False.
400
What school does Ms. McCaffrey go to?
Loyola
500
Name the headings of the categorical frequency distribution chart. (There are 4)
Class, tally, frequency, percent.
500
Give an example of ratio-level data.
Height
Weight
Age
Salary
500
Name three common ways to survey a population.
Phone, internet survey, mail.
500
A __(confounding, or explanatory)___ variable is one that influences the dependent or outcome variable but cannot be separated from the independent variable.