Answer to Question #231645 in Statistics and Probability for Jamilah

Question

The following question refers to the data in the excel sheet showing 2015 GDP per
capita and fertilty rates for different countries in the world.
a) (i) Make a cumulative percentage graph of GDP per capita using classes of
ten thousand points, starting with 1-10000.
[5 marks]
(ii) State the range of the GDP per capita values of countries that are below the
25th percentile?
[2 marks]
(iii) State the range of the GDP per capita values of countries that above the
75th percentile?
[2 marks]
(iv) What is the mean GDP per capita value?
[1 mark]
1

Answer 1

(i) The frequency distribution table is as follows:

The cumulative percentage graph is as follows:

(ii) Compute the 25^th percentage of the data as follows:

The range of values below the 25^th percentile is (1 – 3785.25).

(iii) Compute the 75^th percentage of the data as follows:

The range of values that above the 75th percentile is (25493.50 – 148374.00).

(iv) Compute the mean of the data as follows:

The mean GDP per capita value is 18393.53.