# Data Handling (Measure of central tendency)

Introduction

The link provided below, provides an introduction to today's lesson. Learners are required to watch the full introductory video before proceeding with the work.

• All leaners are expected to complete the task.
• All the questions need to be answered respectively.
• Learners are required to demonstrate their understanding of the measure of central tendency.

The following key words will be useful in understanding the task in question:

1. Mean/average
2. Ascending/descending orders
3. Median
4. Range
5. Mode
Process
1. Arrange the data in ascending order.
2. Find the mean/average value of the data.
3. Use the correct values of division and multiplication.
4. Give a brief report of your findings from the data provided.
Evaluation

This task will be evaluated using the following rubric/structure:

1. Arranging the data in ascending order            (2)
2. Finding the average value of data                   (2)
3. Finding the modal value of data                      (1)
4. Finding the median of the data                        (2)
5. Calculating the range of data                           (3)
6. Writing a brief report of findings                       (5)
Conclusion

We use the measure of central tendency to collect and summarise data. It is imperative for Grade 10 learners to assess and follow all the steps to summarising data.

Learners must go home and find a set of data from a newspaper article or any relevant source. Once data has been complied, learners must use the measure of central tendency to summarise data. The data must show all the following:

• Mean/average
• Mode
• Range
• Median
• Ascending/descending order
Credits

In statistics and data handling, the measure of central tendency is a central or typical value for a probability distribution. Colloquially, measures of central tendency are often called averages. The term central tendency dates from the late 1920s. The most common measures of central tendency are the arithmetic mean, the median, and the mode.

Leaners will always be required to arrange the data in a order and proceed to find the most important values of the data. It is also important for learners to be able to write a brief report to demonstrate understanding of their work.

Teacher Page

These are the objectives of the lesson:

• Learners must understand what the measure of central tendency is.
• Learners need to understand why we use the measure of central tendency.
• Leaners will be able to arrange the data and calculate the most relevant values.
• Learners will be able to give feedback of their findings in a form of a report.