Set 2 - Bar Chart

1.

Diagram 1

The bar chart in Diagram 1 shows the information gathered in an investigation on the population animal Q in forest X.

(a) State one reason (inference) about the population of animal Q from year 2000 to year 2008.


(b) In this investigation, state the following variable:
i) Manipulated variable (Changed) :
ii) Responding variable (Measured) :

(c) Predict the population of animal Q in year 2010


(d) In this investigation, state the variable that should be kept the same?


2. Diagram 2 shows a bar chart drawn based on the information gathered in an investigation

Diagram 2

(a) Write an inference about the pollution index in region S and T.


(b) Predict the

i. Region S :
ii) Region T :


(c) Give two suggestion how to reduce pollution in region S.

Diagram 3

3.The bar chart above shows the results of the investigation gathered by a scientist on the population of living thing Q.

(a) State the purpose (aim) of the investigation.


(b) In this investigation, write your hypothesis.


(c)In this investigation, state the following variable:

i) What is changed (Manipulated Variable):

ii)What is observed (Responding Variable):


(d) State the relationship between what is changed and what is observed


(e) Give a reason (inference) for your observation above?

The number of tree are cut down by people affected to the number of living thing in a habitat.

(f) Base on the statement above, write a relationship between manipulated variable and responding variable.