The Next Phase in Statistics is Data Analysis. In this segment we will be focusing on the following:
.1 Averages
.2 Histogram
.3 Other forms of presentation (Dot Diagram, Stem and Leaf)
Follow through the following series of tasks
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.1 Averages
'Before you can begin to understand statistics, there are four terms you will need to fully understand. The first term 'average' is something we have been familiar with from a
very early age when we start analyzing our marks on report cards. We add together all of our test results and then divide it by the sum of the total number of marks there are. We often call it the average. However, statistically it's the Mean!' [source: http://math.about.com]
Your task:
- Define the following statistical terms: Mean, Mode and Median
- You may refer to the following link for assistance [click here]
- Provide an example on each of the terms
- When do we use mean, mode or median?
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.2 Frequency Table and Histogram
Identify the characteristics of a Histogram.
What is/are the primary difference/s between Histogram and Bar Chart?
Your Task
Do a simple survey in class and complete the following tasks
Complete a Frequency Table
- Use Numbers and Plot a Histogram (label the axes and provide a suitable Title)
- Find the (a) mean, (b) mode and (c) median
- Which of the above averages ie. mean, mode or median you think best represents your findings about your survey? Why?
Group 1: Birth months of all your classmates
Group 2: Home location of all your classmates (North, South, East, West)
Group 3: Number of siblings of individual student
Group 4: Types of CCA
Group 5: Favourite genre of movies: Horror, Comedy, Thriller, etc etc
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Other types of Representation
