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100

The proportion of Northern Beaches State High School students who cycle to school each day is 20 per cent. If a random sample of 100 students were taken, the number who cycle to school each day would be:

20

100

What is 7% of 200? 

14

100
A number is times'd by itself. 

The result is halved. The result is subtracted by 12. The result is the product of 4 x 5. What number did I start with?

8.

100

Which is highest? 

3 x 7 

6 x 4 

5 x 5   

11 x 2

5 x 5

200

YEAR 8 SURVEY: Favourite Chocolate

Mars bar: 31 

Cherry Ripe: 15

Snickers: 9

Kit kat: 46 

Freddo: 20. 

WRITE THESE DOWN!

GOOD

200

School Travel Data (year 12)

Walk: 34

Bus: 12 

Bike: 22

Own Car: 8 

Parents Car: 40

WRITE THESE DOWN! 

GOOD
200
How many year 12's either walk or ride their bike to school? 

56

200

What is the total of the 7 numbers below:

25.3, 14.1, 20.7, 22.8, 17.9, 14.3, 19.6

WRITE THESE DOWN!

134.7

300

How many year 8's were surveyed? 

121

300

How do you find the population of the survey?

Add up all the student totals.

300

What is the most popular mode of travel? 

Parents Car

300

What number do I divide the total of the numbers by to find the mean? 

7

400
How many more students like Freddo than Cherry Ripe? 

5

400
What is the population?

116

400

SHOE SIZES OF YEAR 10 CLASS ARE AS FOLLOWS: 

4, 5, 5, 7, 7, 7, 8, 9, 9, 10, 11, 11, 12

What is the median? 

8

400
What is the range of the numbers you wrote down? 

11.2

500

What is the 2nd least favourite type of chocolate?

Cherry Ripe

500

How do I calculate the proportion of students who walk to school? 

Walkers divided by population 

500

Of all the students at Kirwan state high school year 8. 46 got A's in Maths. What is the group being surveyed? 

Year 8's at Kirwan state high school.

500

If I removed the number 22.8 from the data, what would the new mean be?

18.65