Handling Data Worksheet With Answers - S A Lomax

Handling Data Worksheet With Answers - S A Lomax - 2006 Page 6

b) Plot your 4 point moving averages on the time series below:

 plotting

at the

midpoint of

each group

of 4

 straight

line

(2)

c) Using your graph, comment on the trend of Phil’s behaviour

It is getting better (fewer detentions) 

(1)

d) Using the trend, estimate the number of detentions Phil will receive in

Week 9.

2 or 3 

(1)

8. Bob has a tube of ‘Millions’ (small coloured sweets). He is counting the

sweets to see if there are millions if sweets in his packet. He records the

colour of the first ten sweets:

Sweet

Colour Blue Yellow Blue Yellow Red

Blue Blue Blue

Red Blue

Bob makes the following statements:

There are only blue, yellow and red sweets in my packet

There are more blue sweets than any other coloured sweet in my

packet

The next sweet out will highly likely be blue or red

 for each

Do you agree with Bob’s statements? Explain your answers.

 for each

NO – There might be other colours. Bob has only picked blue, red

correct

and yellow so far.

statement

NO – So far Bob has picked more blue ones. This doesn’t mean there

are more blue ones in total

NO – I don’t know how many of each colour there are in the packet

(6)

S A LOMAX 2006

Handling Data Worksheet With Answers - S A Lomax - 2006 Page 6