Mode and range.

Wala: Mode and range.

L.O: Define mode and range and identify/calculate them from given data.

Starter.

Fill in the boxes accurately.

Relevance of mode in life.

Mode Occurs Most

When looking at a set of information, the mode is simply the number that occurs most often in the set. Imagine that you live in a small town where most of the people are employed by a factory and earn minimum wage. One of the factory owners lives in the town and his salary is in the millions of shillings. If you use a measure like the average to try to compare salaries in the town as a whole, the owner's income would severely throw off the numbers. This is where the measure of mode can be useful in the real world. It tells you what most of the pieces of data are doing within a set of information.

Mode and range (NIM page 62 )

In a set of data, mode is the value that occur the most. In a pictogram, mode is the highest frequency.

Range is the difference between the largest and smallest number.

Individual work.

NIM page 62 Nos 2 a - f

Explain homework.

NIM page 63 Nos 1 a-c