Multiple Choice Exercise
*** Choose one answer and click [Submit] button
3.1 A class of students is as tall as follows. What is this data called?
170 173 168 175 181 185 176 177
3.2 Which of the following graphs is used for quantitative data visualization?
3.3 Which of the following graphs is NOT used for visualization of quantitative data?
3.4 What is the graph of displaying data with the last number of quantitative data as a leaf and the front part as a stem?
3.5 What is the graph used for visualization of two quantitative variable?
Practice Exercise
*** Answer the followings
3.1 Consider the data at the following location of 『eStat』.
[Ex] ⇨ eBook ⇨ Ch3_Ex_Mixed_Survey.csv.
1) Draw a dot graph, a histogram, a stem and leaf plot of the age.
2) Draw a dot graph, a histogram, a stem and leaf plot of the age by gender.
3) Draw a scatter plot of the income (Y) and the age (X) by gender and save it as a file.
3.2 Conduct a survey for students who are currently taking the Data Science (or any other course) to investigate their gender, height, and weight.
1) Make a file in CSV format on gender, height, and weight.
2) Load the data file in 1) to 『eStat』 system and draw a dot graph, a histogram, a stem and leaf plot of the height and save them as graph files.
3) Draw a dot graph, a histogram, a stem and leaf plot of the height by gender and save them as graph files.
4) Draw a scatter plot of the height and the weight by gender and save it as a graph file.
5) Load the saved graphs into the MS Word and prepare a survey report for the students of Data Science.