Understanding Data Representation

Which data representation explicitly shows the median?

• Box plot

• Bar chart

• Dot plot

• Histogram

How can you find the median using a dot plot?

• By listing and ordering the values

• By counting the dots

• By finding the middle dot

• By calculating the average of all dots

What is the median running time of Pixar's first 14 films according to the box plot?

• 95 minutes

• 96 minutes

• 98 minutes

• 99 minutes

Why is a histogram not useful for finding the exact median?

• It only shows the mode

• It is only useful for categorical data

• It cannot display numerical data

• It does not show individual data points

What does the middle line in a box plot represent?

• The mode

• The range

• The mean

• The median

Which display is least useful for determining the exact values of data points?

• Histogram

• Scatter plot

• Box plot

• Dot plot

In the used-car lot example, which display helps to find how many vehicles had driven more than 200,000 kilometers?

• Dot plot

• Histogram

• Box plot

• Line graph

Why might the box plot not be useful for finding how many cars exceeded a certain mileage?

• It is not accurate

• It cannot display large numbers

• It only displays the median

• It does not show individual values

How many vehicles had a mileage between 200,000 and 250,000 kilometers?

• Two

• Five

• Four

• Three

What quartile would vehicles with more than 200,000 kilometers be in?

• Fourth quartile

• Third quartile

• Second quartile

• First quartile