Quiz Tutorial 5: Data Visualization with ggplot

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This quiz complements Tutorial 5: Data Visualization with ggplot. It is only for your own self-assessment so you are free to submit as many times as you want.

Link to tutorial: https://www.kaggle.com/anichh/tutorial-5-data-visualization-with-ggplot

Q1: What is the name of the core that the packages readr, dplyr, and ggplot2 belong to? *

1 point

tardiverse

tidyverse

they belong to different packages

tidysomething

Q2: What do you think the argument `na.rm = TRUE` does? *

1 point

removes missing (NA) variables

keeps only missing (NA) variables

highlights missing (NA) variables

it doesn't code for anything

Q3: What do you think the argument `show.legend = TRUE` does? *

1 point

shows the graph's legend

hides the graph's legend

shows a legend of all of the possible arguments for the geom_point() function

shows a legend of keyboard shortcuts in R

Q4: What does the graph look like? *

1 point

Q5: Which is the correct code for the question above? *

1 point

ggplot(demo_bpx) + geom_point(aes(x = Systolic, y = Diastolic, color = "blue"), na.rm = TRUE)

ggplot(demo_bpx) + geom_point(aes(x = Systolic, y = Diastolic), color = "blue", na.rm = TRUE)

ggplot(demo_bpx) + geom_point(aes(x = Diastolic, y = Systolic), color = "blue", na.rm = TRUE)

ggplot(demo_bpx) + geom_point(aes(x = Diastolic, y = Systolic, color = "blue"), na.rm = TRUE)

Q6: What do you think the argument `se = FALSE` does? *

1 point

removes the legend

removes missing (NA) values

removes outliers

removes standard error range from the line graph

Q7: Increasing the binwidth of a bar graph makes the graph more detailed. *

1 point

True

False

Q8: Match the following geometrics with the correct graph type. *

5 points

scatterplot

smoothed conditional means

bar chart

line graph

boxplot

geom_point

geom_smooth

geom_line

geom_boxplot

geom_bar

Q9: It is most useful to use facet functions when plotting continuous variables. *

1 point

True

False

Q10: What is the difference between legend.title and legend.text? *

1 point

one codes for the title of the graph and the other codes for the text of the graph

one codes for the title of the legend and the other codes for the text of the legend

one cannot be used to change text sizes on the graph

they code for the same thing

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