What is the range of the dot plot?
The range is the difference between the maximum value and minimum value for a data set. EXAMPLE 1: Mrs. Andrews surveyed the students in her math classes to find out how many minutes each one studied for the last test. She created a dot plot for 1st period and for 2nd period.
What is mean mode median and range?
Median: the middle number in the set of values. Mode: the number or value, which appears most often in the set. To find the mode, you need to count how many times each value appears. Range: the difference between the lowest and the highest value. To work it out, simply subtract the lowest value from the highest.
What is dot plot used for?
A dot plot, also known as a strip plot or dot chart, is a simple form of data visualization that consists of data points plotted as dots on a graph with an x- and y-axis. These types of charts are used to graphically depict certain data trends or groupings.
How do you compare two dot plots?
COMPARING DOT PLOTS NUMERICALLY
- Compare the shapes of the dot plots. The dot plots appear almost opposite.
- Compare the centers of the dot plots by finding the medians.
- Compare the spreads of the dot plots by calculating the ranges.
- Calculate the median and range of the data in the dot plot.
What are the advantages of dot plots?
Dot plots are one of the simplest statistical plots, and are suitable for small to moderate sized data sets. They are useful for highlighting clusters and gaps, as well as outliers. Their other advantage is the conservation of numerical information.
What does a dot plot show you?
A dot plot is similar to a histogram in that it displays the number of data points that fall into each category or value on the axis, thus showing the distribution of a set of data.
