My hypothesis

5.0

How many different things did you count? In what ways might computer be used to control different things in the supermarket?
-5 things

-CCTV
- CREDIT CARD
-List the things in super market in computer
-calculate

Why is it useful to use computers rather than people to control things? What problems might there be if any of the computer system fail in the supermarket?
-Computer can do what people cannot do, it can calculate things quickly

If any of the computer system fail in the supermarket it will be very difficult
It can not calculate things

Describe the inputs and outputs for the other devices that we have talked about so far. How do the supermarket doors and car park barriers know when too open?
- It opens by our body temperature
Identify other control systems that work automatically in this way
- Some of the toilet waters automatically comes out

What would happen if the instructions were wrong?
The car would be made wrong
These instructions assume that the car were not there? How could they stop this happening
Make the machine stop if the car is not there ( just like the auto door)

4.6 Reaching Conclusion

My hypothesis: Female gets more pocket money than male

1) decide who I’m going to give questionnaires to
A) 10 male students
B) 10 female students

Create a questionnaire
A)gender
B) how much pocket money do you get?

2) give it to people and collect it back
3) Make the structure

4) enter the data in excel worksheet

5) make a graph

4.6 My hypothesis

4.3

1 How many of them are red?
8

 2 How many of them are blue?
15

 3 How many of them are happy?
14

 4 How many of them are sad?
17

 5 How many of them are red AND sad?
30

 6 How many of them are blue AND have black eyes?
8


 7 How many of them are green AND have white eyes AND are sad?
3

 8 How many of them are blue OR green?
22

 9 How many of them are happy OR have white eyes?
20


10 How many of them are happy OR have black eyes OR are blue?
26