Author Archives: Aaron Pratt

Assignment: 09-Mean Absolute Deviation Temporarily taking math out of the picture, the word deviation simply means a change from the normal.  In mathematical terms, deviation is how far a number is away from the norm, in this case, the mean, or … Continue reading →

Assignment: 08-Histograms Similar to a bar graph.  Similar to a line graph. Similar to a line plot. Yet, a different graph all of its own. A histogram is a graphical display of data using vars of different heights.  Yes, I realize … Continue reading →

Assignments: 07-Box and Whisker Plot We’re going to use the following data set to help us create and understand Box-and-Whisker plots: 14, 21, 19, 12, 13, 24, 26, 19, 15, 25, 19 Step 1: Find the median of the data. To find … Continue reading →

Line Graphs: 06-Line GraphsLine graphs are another type of graph that comes a bit easier than others, and again, is also one that we will see more frequently throughout life.  If you notice the x-axis is representational of time.  You will … Continue reading →

Assignment: 05-Bar Graphs Above is a visual representation of a bar graph.  It is one of the simpler types of graphs we’ll work with this year. Coincidentally, it’s also one of the more common types of graphs we’ll continue to see … Continue reading →

Assignment: 04-Stem and Leaf Plots Stem-and-leaf plots are just another way of representing data.  Stem-and-Leaf plots work best if all of the numbers in the data set are greater than 9 and less than 100 (between 10 and 99). Let’s say … Continue reading →

Assignment: 03-Frequency Table and Line Plots As we learn in science, the word frequency means how often something happens.  A frequency table takes a set of data and tallies the amount of times certain bits of data happen.  It can either … Continue reading →

Assignment: 02-Mean Median Mode Range For this section, I will use the data pictured below. We’ll say this is a student’s scores for 8 tests. Range - the distance between the highest number and the lowest number.  In this set of data … Continue reading →

Assignment: 01-Samples and Surveys This unit begins our unit on statistics.  Much like the word algebra, the word statistics alone can make things seem word than they are, so we begin simply by defining what the word statistics means: Statistic - a … Continue reading →

12-Graphing Shapes Previously in the year we have discussed graphing on a coordinate plane.  To review this, click here. There are a few different ideas that we introduce in this lesson.  The first is if you are given a set of … Continue reading →