Description
Week 1 – Introduction to Statistics
Week  Assignments  Due Date 
Week 1  Introduction Forum (Not graded by required) 
Suggested Due Date: Wednesday of Week 1 
Graded Discussion  Suggested Due Date—
Initial Post: Wednesday of Week 1
Due Date— Responses: Sunday of Week 1 [Have two posts on two different days] 

Knewton Homework Assignments
Evidence, Claims and Study Types (Section 1.4) Variable and Measures of Data (Section 1.3) Sampling Methods (Section 1.2) Comparing Sampling Methods (Section 1.2) 
Sunday of Week 1 
Week 1 Assignment – Variables and Measures of Data
Objectives
1.3 Variables and Measures of Data
Completed
 Identify explanatory and response variables in an experiment
 Define and distinguish between qualitative, quantitative, discrete, and continuous variables
 Identify levels of measurement of data
Activity 1
Question
A political researcher asks people if they Strongly Disagree, Disagree, Agree, or Strongly Agree with various policy decisions. What is the level of measurement of the data?
Select the correct answer below:
 nominal
 ordinal
 interval
 ratio
Answer
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Activity 2
Question
A zoologist measures the birthweight of each cub in a litter of lions. What is the level of measurement of the data?
Select the correct answer below:
 nominal
 ordinal
 interval
 Ratio
Answer
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Activity 3
Question
What term best describes data that is an attribute whose value is indicated by a label?
 discrete
 quantitative
 statistic
 qualitative
Answer
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Activity 4
Question
Given that Justin is collecting data on reaction time, what type of data is he working with?
 qualitative data
 discrete quantitative data
 continuous quantitative data
 none of the above
Answer
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Activity 5
Question
Which of the following best describes the term explanatory variable?
Select the correct answer below:
 the dependent variable in an experiment
 a value or component of the independent variable applied in an experiment
 a variable that has an effect on a study even though it is neither an independent nor a dependent variable
 the independent variable in an experiment
Answer
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Activity 6
Question
Angela is collecting data on the number of classes that students take. What type of data is this?
 qualitative data
 discrete quantitative data
 continuous quantitative data
 none of the above
Answer
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Activity 7
Question
Jacqueline is investigating if age has any effect on the number of hours of sleep. Which of the following gives the explanatory and response variables respectively?
Select the correct answer below:
 the number of people that are being studied and the number of hours of sleep
 the number of hours of sleep and age
 age and the number of hours of sleep
 the number of people that are being studied and age
Answer
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Activity 8
Question
Given that Angelina is collecting data on commute distance, what type of data is she working with?
Select the correct answer below:
 qualitative data
 discrete quantitative data
 continuous quantitative data
 none of the above
Answer
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Activity 9
Question
Patrick is collecting data on shoe size. What type of data is this?
Select the correct answer below:
 qualitative data
 discrete quantitative data
 continuous quantitative data
 none of the above
Answer
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Activity 10
Question
To determine whether or not grade level influences time spent studying, Samuel has designed a survey. What is the response variable?
Select the correct answer below:
 grade level
 time spent studying
 the number of people surveyed
 none of the above
Answer
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Activity 11
Question
A biologist samples and measures the length of the fish in a lake. What is the level of measurement of the data?
Select the correct answer below:
 nominal
 ordinal
 interval
 ratio
Answer
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Activity 12
Question
A market researcher finds the price of several brands of fabric softener. What is the level of measurement of the data?
Select the correct answer below:
 nominal
 ordinal
 interval
 ratio
Answer
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Activity 13
Question
Is the statement below true or false?
Continuous data is the type of quantitative data that is the result of counting.
Select the correct answer below:
 True
 False
Answer
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Activity 14
Question
Jason is collecting data on the number of books students read each year. What type of data is this?
Select the correct answer below:
 qualitative data
 discrete quantitative data
 continuous quantitative data
 none of the above
Answer
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Activity 15
Question
To determine whether or not number of siblings influences grade point average, Charles has designed a survey. What is the explanatory variable?
Select the correct answer below:
 number of siblings
 grade point average
 the number of people surveyed
 none of the above
Answer
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Activity 16
Question
Which of the following best describes the term response variable?
Select the correct answer below:
 the independent variable in an experiment
 a variable that has an effect on a study even though it is neither an independent nor a dependent variable
 the dependent variable in an experiment
 a value or component of the independent variable applied in an experiment
Answer
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Activity 17
Question
True or False?
An explanatory variable is a value or component of the independent variable applied in an experiment (This is a treatment)
Select the correct answer below:
 True
 False
Answer
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Activity 18
Question
Margaret is investigating if gender has any effect on political party associations. What is the response variable?
Select the correct answer below:
 political party associations
 gender
 the number of people that are being studied
 none of the above
Answer
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Activity 19
Question
A new mother keeps track of the time when her baby wakes up each morning. What is the level of measurement of the data?
Select the correct answer below:
 nominal
 ordinal
 interval
 ratio
Answer
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Activity 20
Question
A track runner keeps track of how long it takes her to run the 200meter dash. What is the level of measurement of the data?
Select the correct answer below:
 nominal
 ordinal
 interval
 ratio
Answer
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