Averages
Graphs
Probability
Tallies
Pot Luck
100

How do you work out the range?

Take away the lowest number by the highest

100

What does SALT stand for? 

Scale, Accuracy, Labels, Title

100

How would you describe 0.5 or 1/2 in probability? 

Even Chance
100

How many people chose orange juice? 

8
100

How many degrees in a quadrilateral? 

360°  

200

How do you work out the mean?

Add up all the values and divide by the number of them 

200

How many year 7s have brown eyes?

20 

200

What is the probability of rolling a number higher than a 4 on a fair 6 sided dice? 

2/6 or 1/3 or Unlikely 

200
Why do we use tally charts? 

To collect discrete data quickly and efficiently 

200

How do you find the Area of a Triangle 

Base x height ÷ 2

300

£100, £96, £5043, £178, £102, £148

Out of this data, what would be the anomaly?

£5043

As it's considerably more than the others. 

300

What is wrong with this line graph?  

There is no title 

The scale is inaccurate 

300

What fraction represents the greater likelihood 1/24 or 1/36? 

1/24

300

What would this look like as a tally chart 

car bus car car train bus walk bus train walk  train bus 

Car - III

Bus - IIII

Train - III

Walk - II


300

Split £100 into the ratio 1:3 

25:75

400

What is the range of this data? 

0.12, 0.03, 1.53, 0.5, 0.09

1.5

400

Generally speaking you'd use a bar chart to represent what type of data? 

Discrete - data that can be counted 

400

Jill is selling 20 shirts. 5 blue, 8 white and 3 red the rest are black. What is the probability of selecting a red shirt at random? 

3/20 or 0.15 

400

What is discrete data? 

Data that can be counted 
400
What is 14/20 as a decimal? 

0.7 

500

Why would writing 5 + 10 + 21 + 18 + 7 ÷ 5 into a calculator to find the mean get you the wrong answer? 

It would follow BIDMAS and do the divide bit first

500

Generally speaking you'd use a line graph to represent what type of data? 

Continuous - data that is measured 

500


D. 0.4 x 0.4 = 0.16 

Unlikely 

 

500


The groups are overlapping

500

What is 15 minutes as a decimal? 

0.25

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