Marine biologists are concerned that pollution from a nearby factory has affected the health of local sea urchins.
Which of the following is most likely to be the population of interest?
Which of the following variables is most likely to be used as categorical?
Which of the following variables is most likely to be used as quantitative?
A February 2014 Gallup Poll question asked, 'In politics, as of today, do you consider yourself a Republican, a Democrat or an Independant?'
The possible responses were : 'Democrat,' Republican', 'Independent', or 'Other'
What kind of variable is the response?
Gallup conducted a series of telephone polls involving 20,392 American adults during 2011. Among the reported results were:
voters' gender, age, race, party affiliation, whether they were of Hispanic ethnicity, education level, region, # adults in the household, and phone statust (cell phone only, landline only, etc.).
What would the sample be for this study?
In 2012 Consumer Reports rated bottom-freezers. It listed 102 models, giving the brand, cost, size (small, medium, large), temperatuer performance, noise (poor, fair, etc), ease of use, energy efficiency, estimated annual energy cost, an overall rating and the exterior dimensions
What is the population for this study:
Business analysts hoping to provide information helpful to American grape growers compiled these data by surveying several vineyards:
Size (acres), number of years in existence, state, varieties of grapes grown, average case price, gross sales, and percent profit.
What is the population of interest for this study?
The pie charts below show the percentages of users of Facebook and users of Twitter that fall into various age groups.
Which of the following statements below cannot be concluded about the pie charts?
The segmented bar charts below depict the data from the NAAL conducted in 2003.
Which of the following is greatest? Hint: read carefully and think about what the bar charts display, and the y-axis label.
The segmented bar charts below depict the data from the NAAL conducted in 2003.
Based on the segmented bar graphs, does there appear to be an association between voluteerism and literacy level?
The segmented bar charts below depict the data from the NAAL conducted in 2003.
Based on the segmented bar graphs, which group is the most likely to not voluteer at all?
The Center for Disease Control listed the causes of death in the United States during 2017:
Heart Disease 25.4%
Cancer 23.2%
Circulatory Diseases and stroke 5.6%
Chronic Respiratory Disease 5.3%
Accidents 5.1%
Would it be appropriate to display this data in a pie chart?
The Center for Disease Control listed the causes of death in the United States during 2017:
Heart Disease 25.4%
Cancer 23.2%
Circulatory Diseases and stroke 5.6%
Chronic Respiratory Disease 5.3%
Accidents 5.1%
What percent of deaths were from causes not listed above?
In the wake of some corporate financing scandals, the Gallup Organization asked 1,001 American adults what kind of changes, if any, were needed in the way major corporations were audited. Here's a display of the results.
Would it be appropriate to make a pie chart for these data?
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What are the variables being compared in this table?
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What percent of the class is male?
Round to one place past the decimal for the %.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What percent of the class considers themselves to be 'conservative'?
Round to one place past the decimal for the %.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What percent of the males in the class consider themselves to be 'conservative'?
Round to one place past the decimal for the %.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What percent of all the students in the class are males who consider themselves to be 'conservative'?
Round to one place past the decimal for the %.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What percent of the 'conservatives' are males?
Round to one place past the decimal for the %.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What percent of the 'liberals' are females?
Round to one place past the decimal for the %.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
What percent of the females are 'liberals'?
Round to one place past the decimal for the %.
Use the table displayed below.
Circle the marginal distribution of sex.
I will grade your work myself.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Give the marginal distribution for Sex.
Use the format: Female:space percent space Male: space percent
ex. Female: 22.2% Male: 22.4%
Round to one place past the decimal for the %.
I will try to double check answers to see if yours is correct, ask me if you have a question.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Circle the marginal distribution of politics using the show your work section below.
I will grade myself as you are working.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Give the marginal distribution for Politics.
Use the format: L:space percent space M: space percent space C: space percent
ex. L: 22.1% M: 22.4% C: 44.8%
Round to one place past the decimal for the %.
I will try to double check answers to see if yours is correct, ask me if you have a question.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Circle the conditional distribution of Politics for the males.
I will grade your answer myself.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Give the conditional distribution of Politics for the males.
Use the format: L:space percent space M: space percent space C: space percent
ex. L: 22.9% M: 22.5% C: 44.8%
Round to one place past the decimal for the %.
I will try to double check answers to see if yours is correct, ask me if you have a question.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Circle the conditional distribution of Sex for the Liberals.
I will check your answer as you work.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Give the conditional distribution of Sex for the Liberals.
Use the format: Female:space percent space Male: space percent
ex. Female: 24.6% Male: 33.2%
Round to one place past the decimal for the %.
I will try to double check answers to see if yours is correct, ask me if you have a question.
Students in an Intro to Stats course were asked to describe their politics as 'Liberal', 'Moderate', or 'Conservative'. The results are below:
Based on the segmented bar charts above, do you think Sex and Politics are associated?
The bar chart below displays the cause(s) of death for a group of adults in January of 2012.
The 4 most common causes: heart disease, cancer, respiratory disease and stroke, accounted for nearly 60% of all deaths.
Do you see any problems with the graph?
What characteristics are important when creating a Relative Frequency Bar Chart, a Pie Chart or a Segmented Bar Chart? (there are 4)
Gallup conducted a series of telephone polls involving 20,392 American adults during 2011. Among the reported results were:
voters' gender, age, race, party affiliation, whether they were of Hispanic ethnicity, education level, region, # adults in the household, and phone statust (cell phone only, landline only, etc.)
Select all the variables that are categorical:
Gallup conducted a series of telephone polls involving 20,392 American adults during 2011. Among the reported results were:
voters' gender, age, race, party affiliation, whether they were of Hispanic ethnicity, education level, region, # adults in the household, and phone statust (cell phone only, landline only, etc.)
Select all the variables that are quantitative: