1. Statistics Review  Mode: the number that occurs most frequently in the data set (could have more than 1)  Median : the value when the data set is listed from least to greatest that falls in the middle (middle number). 50% of the data is at or below this value. 50% of the data is at or above this value  Mean: the sum of all the values divided by the number of values in data set. Also know as the average  Range: the maximum value – the minimum value

2. Types of Data Univariate data, or one ‑ variable data, involves a single variable and allows you to describe something. There are two different types of univariate data—categorical and quantitative. https://youtu.be/43n2Xhzmago

3. Organizing Data  Frequency Tables: helps us to organize categorical or quantitative data to display how frequently it occurs(mode). A frequency table is created by making a table with separate columns. One column is designated for categories or intervals and the other for frequency.

4. Representing Data  Organizing data in different ways lets us understand the data better.  Data by itself is just a set of numbers – our job as mathematicians is to tell the story of the data.  3 ways to represent: dot plots, histograms and box plots

5. Representing Data: Dot Plots A graphical display of data using dots. Helps to organize categorical data to display how frequently it occurs (mode) Tells us the number of data points in different categories. -Data can be chunked to make categories (every 10 points on a test can be a category, for example - # of students who score in the 60’s, 70’s etc.)

6. Representing Data: Histograms Similar to a dot plot, but uses bars to show frequency of data (mode) for different intervals. Helps us organize quantitative data into intervals

7. How to create a histogram  IMPORTANT TO NOTE: When creating a histogram on graphing calculator, you can not use minimum value from data set it would have to be a number that is smaller than minimum value. https://youtu.be/rhCq0Xcvg_E

8. Representing Data: Box Plots

9. How to create a box plot 1.Put the data in numerical order (low to high) 2.Find the median (middle) number 3.Find the lower quartile (the median/middle of the lower half of the numbers 4.Find the upper quartile (the median/middle of the upper half of the numbers 5.Plot a number line 6.Plot the minimum, lower quartile, median, upper quartile and maximum. Turn and Talk: 1. Which test has a higher median? Calculate and interpret the interquartile range for each test?

10. How to create a box plot Even vs Odd set of data https://youtu.be/Wk8bTqWtf6o