Exploring Stem-and-Leaf Plots

What is a key feature of histograms compared to bar graphs?

• Histograms have unequal intervals.

• Histograms display qualitative data.

• Histograms have no gaps between bars.

• Histograms have gaps between bars.

How do you calculate the mean from histogram data?

• Divide the sum of data by the number of intervals.

• Add all the frequencies together.

• Divide the sum of data by the number of data points.

• Multiply the highest and lowest data values.

In a stem and leaf plot, what does the leaf represent?

• The total count of data points.

• The digit or digits on the right of the stem.

• The categories of data.

• The highest value in the data set.

How do you find the median in a stem and leaf plot?

• Add the smallest and largest numbers and divide by two.

• Identify the middle number or average the two middle numbers.

• Count the number of leaves and divide by two.

• Sum all the leaves and divide by the number of stems.

What is the mode in a set of data?

• The value that appears most frequently.

• The difference between the highest and lowest values.

• The average of all data points.

• The middle value in the data set.

What does a double stem and leaf plot represent?

• Data from two different sources or categories.

• Two different types of numerical data.

• Twice the amount of data in a regular plot.

• Data that has been doubled for accuracy.

How do you find the range in a stem and leaf plot?

• Subtract the smallest number from the largest number in the data set.

• Subtract the smallest leaf from the largest leaf.

• Subtract the smallest leaf from the largest stem.

• Add the highest and lowest leaves together.

What is the first step in creating a stem and leaf plot?

• Determine the smallest and largest numbers.

• Arrange the leaves in ascending order.

• Identify the stems.

• Draw the plot outline.

How do you set up the stems for a stem and leaf plot?

• Randomly to create variety.

• Based on the range of data.

• Using only even numbers.

• Based on the tens place of the numbers.

What should you do after identifying the stems in a stem and leaf plot?

• Label the plot with a title.

• Determine the mode of the data.

• Calculate the mean of the data.

• Fill in the leaves according to the data.