Decoding Stem & Leaf Plots and Histograms

What is the primary purpose of the stems in a stem-and-leaf plot?

• To indicate the frequency of data points

• To list the individual data points

• To represent the main categories of data

• To show decimal places of numbers

What does the key in a stem-and-leaf plot help you do?

• Identify the largest data point

• Determine the mean of the data

• Read and interpret the plot correctly

• Calculate the mode of the data

Which number appears most frequently in the discussed stem-and-leaf plot?

• 23

• 27

• 43

• 47

What is the smallest data point in the stem-and-leaf plot?

• 23

• 47

• 27

• 37

How are the bars in a histogram different from those in a bar graph?

• They are always of the same color

• They represent ranges of values

• They do not touch each other

• They represent qualitative data

What does the height of a bar in a histogram indicate?

• The mean of the data range

• The total range of data

• The median of the data range

• The frequency of data within the range

In comparing histograms and stem-and-leaf plots, which method allows for specific data point visibility?

• Histograms

• Stem-and-leaf plots

• Both methods equally

• Neither method

Which method is better for analyzing one specific group of data?

• Both methods equally

• Histograms

• Stem-and-leaf plots

• Neither method

What is the median value in the discussed data set?

• 41

• 42

• 44

• 43

Which of the following is not a feature of a histogram?

• Bars representing specific individual scores

• Bars touching each other

• Bars representing ranges of values

• Height of bars indicating frequency