NSC Mathematical Literacy Representing, interpreting and analysing data: TABLE 1 below shows census data

Question

TABLE 1 below shows census data for three municipalities for 2001 and 2011.

TABLE 1: CENSUS DATA FOR TLOKWE, BLOUBERG AND BREDE VALLEY MUNICIPALITIES (2001 AND 2011)

Key Statistics                  Tlokwe                Blouberg                 Breede Valley

2001       2011        2001      2011         2001       2011

Total population     128 353   162 762   171 221   162 962    146 387   1862

Children (0–14)    25.5%, 25.2%    40.2%,  25.3%    27.8%     27.6%

Working age
(15–64)                   69.1%, 69.1%    53.7%,  66.0%    66.9%      66.6%

Elderly (65+)             5.6%,  6.2%     6.9%,     5.3%       5.4%     6.3%

Average annual
population growth
rate                          0.56%     2.68%     -0.53%   2.38%

Population density  (people/km²) 61           118      76           83            44

Unemployment rate       37.1%    21.6%    41.7%     19.7%    14.4%

Number of
households                Electricity use

Use the information in the table above to answer the following questions.

4.1.1 Identify the municipality that had the highest number of employed people during 2011.

4.1.2 Calculate the difference in the total population of the municipality that had the largest increase in total population from 2001 to 2011.

4.1.3 Calculate the number of elderly people in the Blouberg municipality during 2001.

4.1.4 A person living in the Breede Valley municipality during 2011 is randomly selected. Determine the probability that the person is employed. Express the probability as a common fraction in its simplest form.

4.1.5 Which municipality showed the largest percentage increase in the use of electricity from 2001 to 2011?

4.1.6 Calculate the average population growth rate for the Breede Valley municipality from 2001 to 2011. You may use the following formula:

Average population growth rate = $ \frac{\text{difference in total population from 2001 to 2011}}{\text{total population in 2001}} \times 100 $

4.1.7 Calculate, to the nearest km², the land area of the Tlokwe municipality in 2011.

TABLE 1 below shows census data for three municipalities for 2001 and 2011 - NSC Mathematical Literacy - Question 4 - 2016 - Paper 1

Worked Solution & Example Answer:TABLE 1 below shows census data for three municipalities for 2001 and 2011 - NSC Mathematical Literacy - Question 4 - 2016 - Paper 1

Identify the municipality that had the highest number of employed people during 2011.

Calculate the difference in the total population of the municipality that had the largest increase in total population from 2001 to 2011.

Calculate the number of elderly people in the Blouberg municipality during 2001.

A person living in the Breede Valley municipality during 2011 is randomly selected. Determine the probability that the person is employed. Express the probability as a common fraction in its simplest form.

Which municipality showed the largest percentage increase in the use of electricity from 2001 to 2011?

Calculate the average population growth rate for the Breede Valley municipality from 2001 to 2011.

Calculate, to the nearest km², the land area of the Tlokwe municipality in 2011.

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