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1.What is the mean number of family members? Ans : Mean family members = [(2x2) + (3x4) + (4x13) + (5x12) + (6x9)] / 40 = (4 + 12 + 52 + 60 + 54) /40 = 192 / 40 = 4.8
3.What is the modal age of the children staying in this estate? Ans : Modal age = 13 to 16
2.What is the mean number of children in each family? Ans : Mean number of children = [(8x1) + (20x2) + (9x3) + (4x1) + (5x1)] / 40 = (8 + 40 + 27 + 4 + 5) / 40 = 2.1
4.What is the median income of the residents staying in this estate? Ans : Position of median = 40/2 and (40/2 + 1) = 20th and 21st
Thinking!!! 6.Draw an appropriate diagram to represent the number of children in each age range: 0-6, 7-12, 13-16, 17-21, above 21. How would you describe this distribution you have drawn? How would you expect this distribution to change in the next 10 years? Will this projection into the future influence your choice on the usage of the plot of land? Ans : The modal age lies in age 13 to 16. The modal age will lie in age 17 to 21 and above 21 after 10 years as the children will grow up [age +10]. Yes, it will affect as the childen of age group 13 to 16 have now grown up after 10 years, so the the choice of usage will change. [E.g Secondary school need to be changed to JC/Poly/ITE].
~National Education~ 1.Does the estate you have surveyed show a good distribution of races from the data collected? Ans : No. 2.Why is it important for the government to have in place a racial quota for each estate? Ans : To maintain harmony between people of different races and to avoid racist attack
GroupC 2A
5.What would you propose to be the most suitable use for the plot of land? Justify your choice by referring to the data collected. Ans : Building a secondary school will be suitable, as there are a lot of teenagers aged 13-16, there are also quite a number of people who are aged 7-12, which they will move to secondary school sooner or later. It will be much more convenient for the students when it comes to coming to school since the school will be near.
