Page 267 - SK Year 5 Mathematics DLP

SOLVE THE PROBLEMS
Height in metre

1 The note shows the height of 10 pupils. 1.25, 1.25, 1.25, 1.30,
Find the range, mode, and median of 1.15, 1.30, 1.25, 1.25,
their heights. 1.30, 1.25

Understand the problem Plan the strategy

• There are 10 data of Arrange the data in ascending order.
the pupils’ height.
• Find the range, mode, minimum • Identify the maximum
and median. height range, mode, height

and median.

Solve

1.15, 1.25, 1.25, 1.25, 1.25, 1.25, 1.25, 1.30, 1.30, 1.30

minimum height two data in the middle maximum height

Range = maximum height – minimum height

= 1.30 m – 1.15 m

= 0.15 m
The range is 0.15 m.

The highest frequency is 1.25 m which is 6 pupils.

The mode is 1.25 m.

The median is located at the fifth and the sixth data.
1.25 m + 1.25 m Calculate the
Median = mean of the data.
2
2.5 m
=
2
= 1.25 m
The median is 1.25 m.

• Form a group of 10 pupils and collect the data of the pupils’ height. 259
Then, find the range, mode, median, and mean of the data.
8.3.1
• Conduct a Gallery Walk and discuss the steps of calculation made.