Comparing Estimates

by Luz Dominguez

Intro

In my project I have surveyed 25 people maybe more, and I have asked them what they thought the population of Australia is. I got many different answers, and also in this project I will compare the estimates to see what are the results.

What is the Population of Australia

Names / age/ Estimates

Julio / 45/ 100,000,000

Ahagata / 37 /5,000,000

Julio Jose/7/1,000,000

Sveta/ 11/ 25,000,000

Julia/12/220,000,000

Polina/11/1,000,000

Megan/11/30,000,000

Mina/12/ 400,000,000

Lukas/12/18,000,000

Jasmijn/11/ 70,000,000

Claire/12/17,000,000

Travis/12/500,000,000

Kendra/11/5,000,000

Anna S./12/ 11,000,000

Hannah W./11/25,000,000

Hannah G./ 11/ 10,000,000

Mr Gonzales/ mid to late 30's/ 100,000,00

Mrs. Foxall/ 52/15,000,000

Anna T/ 11/ 7,000,000

Dane/11/ 100,000,000

Rachelle/11/7,000,000

Aenne/ 11/ 80,000,000

Marley/11/ 23,000,000

Maryam/11/20,000,000

Mattias/11/10,000,000

Comparing the Estimations to the Right Answer.


Name/ Estimate/

Comparing to the right answer.


Julio/ 100,000,000/

100,000,000 - 22,000,000= 78,000,000

78,000,000/22,000,000 = 3.54545454545454...

3.545454545454... x 100 = 354.5454545454 round up = 355%

so he was 355% higher than the real answer.


Ahagata/ 5,000,000

22,000,000 - 5,000,000 = 17,000,000

17,000,000/ 5,000,000 = 3.4

3.4 x 100 = 340%

She was 340% lower than the real answer


Julio Jose/ 1,000,000

22,000,000 - 1,000,000 = 21,000,000

21,000,000/1,000,000 = 21

21 x 100 = 210%

He was 210% lower than the real answer, but I don't blame him to guess so low because he is only 7.


Sveta/ 25,000,000

25,000,000 - 22,000,000 = 3,000,000

3,000,000/22,0000,000 = 0.136363636...

0.136363636... x 100 = 13.6%

She was 13.6% higher than the real answer.


Julia/ 220,000,000

220,000,000 - 22,000,000 = 198,000,000

198,000,000/22,000,000 = 9

9 x 100 = 900%

She was 900% higher than the real answer.


Polina/ 1,000,000

22,000,000 - 1,000,000 = 21,000,000

21,000,000/1,000,000 = 21

21 x 100 = 210%

He was 210% lower than the real answer.


Megan/ 30,000,000

30,000,000 - 22,000,000 = 8,000,000

8,000,000/22,000,000 = 0.3636363636363636...

0.3636363636363636... x 100= 36.3636363636...%

36.3636363636...% rounded 36.4%


Mina/ 400,000,000

400,000,000 - 22,000,000 = 378,000,000

378,000,000/22,000,000 = 17.181818181818...

17.181818181818... x 100 = 1718.181818181818...%

rounded = 1718.2%

she was 1718% higher than the real answer.


Lukas/ 18,000,000

22,000,000 -18,000,000 = 4,000,000

4,000,000/18,000,000= 0.22222222...

0.22222222...x 100 = 22.2%

He was 22.2% lower than the real answer.


Jasmijn/ 70,000,000

70,000,000-22,000,000=48,000,000

48,000,000/22,000,000= 2.181818181818...

2.181818181818... x 100 = 218.18181818...%

rounded = 218.2%

She was 218.2% higher than the real answer


Claire/ 17,000,000

22,000,000-17,000,000=5,000,000

5,000,000/17,000,000= 0.294117647

0.294117647 x 100 = 29.4117647%

rounded 29.4%


Travis/ 500,000,000

500,000,000 - 22,000,000 = 478,000,000

478,000,000/22,000,000 = 21.7272727272...

21.7272727272... x 100 =2172.72727272...%

rounded 2172%

He was 2127% higher than the real answer.


Kendra/ 5,000,000

22,000,000 - 5,000,000 = 17,000,000

17,000,000/ 5,000,000 = 3.4

3.4 x 100 = 340%

She was 340% lower than the real answer


Anna S /11,000,000

22,000,000-11,000,000=11,000,000

11,000,000/11,000,000= 1

1 x 100= 100%

she was 100% lower than the real answer


Hannah W/ 25,000,000

25,000,000 - 22,000,000 = 3,000,000

3,000,000/22,0000,000 = 0.136363636...

0.136363636... x 100 = 13.6%

She was 13.6% higher than the real answer.



Hannah G /10,000,000

22,000,000-10,000,000 = 12,000,000

12,000,000/10,000,000 = 1.2

1.2 x 100 = 120%

she was 120% lower than the right answer.


Mr. Gonzales/ 100,000,000

100,000,000 - 22,000,000= 78,000,000

78,000,000/22,000,000 = 3.54545454545454...

3.545454545454... x 100 = 354.5454545454 round up = 355%

so he was 355% higher than the real answer.


Mrs.Foxall/ 15,000,000

22,000,000- 15,000,000 = 7,000,000

7,000,000/15,000,000 = 0.466666666666...

0.466666666666...x 100 = 46.66666666...

rounded 46.7%

She was 46.7% lower then the real answer


Anna T/ 7,000,000

22,000,000-7,000,000= 15,000,000

15,000,000/7,000,000= 2.142857142857...

2.142857142857... x 100 = 214.2857142857%

rounded 214.3%

She was 214.3% lower than the real answer


Dane /100,000,000

100,000,000 - 22,000,000= 78,000,000

78,000,000/22,000,000 = 3.54545454545454...

3.545454545454... x 100 = 354.5454545454 round up = 355%

so he was 355% higher than the real answer.


Rachelle/ 7,000,000

22,000,000-7,000,000= 15,000,000

15,000,000/7,000,000= 2.142857142857...

2.142857142857... x 100 = 214.2857142857%

rounded 214.3%

She was 214.3% lower than the real answer.


Aenne/ 80,000,000

80,000,000-22,000,000= 58,000,000

58,000,000/22,000,000=2.6363636363636363...

2.6363636363636363.. x 100 = 263.6363636363...%

rounded 263.6%

She was 263.6% higher than the real answer.


Marley/ 23,000,000

23,000,000-22,000,000= 1,000,000

1,000,000/22,000,000= 0.04545454545454545...

0.04545454545454545... x 100= 4.54545454545...%

rounded 4.5%

She was 4.5% higher than the real answer.


Maryam/ 20,000,000

22,000,000-20,000,000=2,000,000

2,000,000/20,000,000= 0.1

0.1 x 100 = 10%

She was 10% lower than the real answer.


Mattias /10,000,000

22,000,000-10,000,000 = 12,000,000

12,000,000/10,000,000 = 1.2

1.2 x 100 = 120%

He was 120% lower than the right answer.

Comparing the Estimates

While I was comparing the estimates to the right answer I noticed that most of the people that I surveyed estimated low numbers not high numbers. I was really surprised, for I thought that more people would pick higher numbers. No one got the right answer but there was this one person that was living in Australia that I surveyed and she was the closes. I think the people guessed those numbers because they were thinking on how big Australia was so maybe that’s what made the people guess what they guessed.