Term 2 Statistics

trand Math Sample

Level 3 Learning Outcomes:

- gain information from a variety of data displays.

- be aware of the type of data each display is appropriate for and the kind of pattern/relationship it best
communicates.

- link others’ claims with the appropriateness of displays used.

WALT: Sort data into categories

Wiremu is allowed to choose a pet for his birthday. He decides to find out what pets his classmates have.
He gives each classmate a blank data card, asks them to list any pets they have, and collects the cards.
With a classmate, discuss Wiremu’s data. Which information is necessary? Which information is unnecessary? Which data is difficult to interpret?

Make a comment on one piece of data from above:

Unnecessary group (why is it unnecessary?):because we don't need some of information they gave us

Hard to interpret group  (why is it hard to interpret?): it's hard to understand how many pets they have

WALT: Interpret and communicate findings about data

The class next door did a similar survey to the one above but they were asked to name their favourite pet.
The results are shown on this tally chart and then presented on the bar graph:

Write three statements that interpret the data shown above:

.

1. cats are the most liked animal

2. horse comes in at second

3. The dog i thought that would be the most liked of them all it's certainly my favorite but it came at third

Discuss with a classmate which graph (bar graph or pie graph) you would prefer to use to show the
information and why?

I prefer the bar graph because it ctually tells you which animals there are.

What is the mean of the data above? (Show your working)

3. 12+8+6+4=30
4. 30 4=7.5

Personal Reflection: I can make statements about graphs. My next is to be able to read pie graphs.