Data Science 2.08 Quiz Review: Data Cleaning in Python

Which of these best describes your current mood?

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A data scientist wants to make a scatterplot showing people's ages and their heights. What part of this data set needs to be cleaned?

• change to numeric

• drop duplicates

• drop missing values

• replace values

A data scientist wants to make a pie chart showing different favorite colors. What part of this data set needs to be cleaned?

• change to numeric

• drop duplicates

• reformat strings

• replace values

A data scientist wants to make a pie chart showing different favorite colors. What part of this data set needs to be cleaned?

• change to numeric

• drop duplicates

• drop missing values

• replace values

A data scientist wants to make a line graph showing the price of gas over time. What part of this data set needs to be cleaned?

• change to numeric

• drop duplicates

• drop missing values

• replace values

A data scientist wants to make a histogram showing various rectangle areas. Remember that the area of a rectangle is the length of the rectangle times the width. What part of this data set needs to be cleaned?

• change to numeric

• drop duplicates

• drop missing values

• replace values

A data scientist wants to make a pie chart showing the ages of their friends. What part of this data set needs to be cleaned?

• change to numeric

• drop duplicates

• drop missing values

• replace values

What does this line of code do?

• reformat string

• drop missing values

• drop duplicates

• change to numeric

What does this line of code do?

• reformat string

• drop missing values

• drop duplicates

• change to numeric

What does this line of code do?

• reformat string

• drop missing values

• drop duplicates

• change to numeric