1. Computing and Data Analysis
Unit 6

2. Today’s Lesson Objectives:
Difference between Quantitative and Categorical
Survey class on last nights amount of sleep
Watch video on how to make histogram

3. Different Data Types Categorical Quantatative
Set values.
For example: Grades:
9th
10th
11th 12
Another example: Blood Type A B AB O
Numerical data (continuous)
Measured
Can take any value within range
Examples:
Height
weight

4. Video: how to make a histogram using Excel
Histogram is quantitative not categorical
Histogram is similar to the bar plot, but notice that there is no space between columns
Histograms are similar to bar plot, but counts are within a pre-constructed range of numbers
Let’s look at Mobilize_ExerciseHealth_2011.csv
First make column graph with Hours Slept with column graph. What happens?
Then do pivot table and then do column graph

5. Survey Hours Sleep Go to piazza access link. Or type or click below
3Qm4sAedzvqFWwL_EkUlsxZ0RF4Jm4qdfTo0/edit?us p=sharing

6. Mean, Median, Mode Mean = average
Median is the middle number when ordered in ascending order
Mode is item/element repeated the most

7. Let’s visit height again in Excel
Calculate average (how is this done?)
Calculate median (how is this done?)
Calculate mode (how is this done?)

8. 5 Survey Data Charts
Complete 5 Survey Data Charts.
Do you have them?