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# Math Project-Population control

Chloe Chan, Agnes Chew, Tiffany Chin, Christy Tang
by

## Christy Tang

on 19 May 2013

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#### Transcript of Math Project-Population control

The Earth's Initiatives -
Population Chloe Chan, Agnes Chew,
Tiffany Chin, Christy Tang Introduction Interview Interview Results Conclusion Record Reading Thank You! We asked 60 Year 7 students
3 questions:
Do you have any siblings(brother or sister)? If yes, how many?
How many children do you want in the future? Population: 7,153,519 (est. July 2012)
Birth Rate: 7.54 Births/1000 Population (est 2012)
Death Rate: 7.23 Death/1000 Population (est. July 2012) Most parents have many siblings;
Most children have less number of siblings;
Most students want less children in the future.

Related to the decrease of population
As most people in nowadays don't want to have children, the birth rate is decreasing each year
It might get to a point in the future where the birth rate is the same or even less than the death rate

Therefore, our prediction is right.
In another way, population can also increase by adopting and migrating . Is there another planet like Earth?
Amount of population is a big problem
Gather opinions from Year 7 students from quick interviews
Gather information by record reading Questions How many family members do most people have?
Will the number of family members affect the number of children they want (family planning)?
Will the birth rate, death rate and population size of each country affect population control? Data collection method: Interviews and Record Reading Target Population: CKY Year 7 students
Sampling Size: 60 CKY Year 7 students
Sampling Method: Random Sampling
Process of Data Collection: Pick 5 girls and 5 boys randomly in each class
Representation: Good for Year 7 students, bad for Earth's population
Limitation: 30 boys 30 girls in total; 5 boys, 5 girls per class
Prediction: Most students are the only son/daughter; fewer children in future Hong Kong Comparison between Q1 and Q3 Comparison between Q2 and Q3 Analysis Results in Q1 and Q2 affected Q3
Q1:Students' no. of siblings
Q2: Parents' no. of siblings
Q3: No. of children students want in the future Analysis The graph shows an increasing trend
Population is continuously increasing from 1960 to 1999
Population increased slightly each year since 2000 As the graph shows, the birth rate of Hong Kong reached a maximum value of 35.93 in 1960
Minimum value of 6.90 is in 2003
The trend is decreasing over the past 40 years until 2004 These are silly answers These are silly answers again (FINAL) (FINAL) (Ridiculous) (Ridiculous)
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