## Friday, 28 March 2014

## Thursday, 27 March 2014

## Monday, 24 March 2014

### Stats Sharp Shooting

WALT calculate the mean, median, mode and range for a set of data.

TASK Elly and Troy want to find out once and for all:

- which Activity Group has the overall best score, (mean)
- which Activity Group has the highest middle number, (median)
- what score was the most common, (mode)
- which activity group has the highest range. (range)

In everyday life people collect data to look for trends and make decisions. In order to analyse the information, we need to understand the different ways tolOOK at the data.

Success Criteria you will know you are successful when:

- calculate the mean by adding up all the data (9 + 4 + 4 + 5 + 8 = 30) then divide thetotal by how many numbers there were (9, 4, 4, 5, 8 = 5 numbers so 30 ÷ 5 = 6).
- calculate the median by ordering all numbers from smallest to biggest then selecting the middle number (4, 4, 5, 8, 9 = 5 is the middle number). If there are 6 numbers e.g. 4, 4, 5, 6, 8, 9, then the median is halfway = 5.5.
- calculate the mode by identifying which number occurs most often (4, 4, 5, 8, 9 = 4 because there are two of them). You can have more than one mode.
- calculate the range by finding the difference between the highest and lowest numbers (9 - 4 = 5).

*Group J*

## Sunday, 23 March 2014

## Thursday, 13 March 2014

## Wednesday, 12 March 2014

## Thursday, 6 March 2014

### Statistics

Statistics: Stem and Leaf Graph

WALT: gather, display and discuss data

Success Criteria:

Gather relevant information

Display data on a stem and leaf graph

Make some conclusions about the data

Task:

To present information about reaction times using a ruler.

Data: 19,12,19,14,3,22,7,9,1,30+

Stem and Leaf Graph:

Sorted Stem and Leaf Graph:

Conclusions:

My best score was 1 and my worst score was 30+ because I did not catch it.

The mean was 12.4. I added it up and divided It by how much data there was. There ten dat so I divided it by 10

Assessment:

Self Assessment: I think I acheived all of these below because I went threw & checked.

I can gather relevant information

I can display data on a stem and leaf graph

I can make some conclusions about the data

Peer Assessment:Katelyn: yes yes yes you acheived all of the stuff below. Good job Georgia

I can gather relevant information

I can display data on a stem and leaf graph

I can make some conclusions about the data

### Chiddlewaddle Diddlewaddle Doo

## Tuesday, 4 March 2014

### Measles Spread In Aukland

- Show critical thinking in your answers.
- Answer questions in full sentences.
- Use correct spelling and punctuation.

- Show critical thinking in your answers.
- Answer questions in full sentences.
- Use correct spelling and punctuation.