Answer to Question #235333 in Statistics and Probability for Hastings Mambwe

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?

Answer 1

(i) The frequency distribution table is as follows:

The cumulative percentage graph is as follows:

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

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

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

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

(iv) Computation of the mean of the data is as follows:

The mean GDP per capita value is 18393.53.