A study was conducted on a sample randomly selected from city A. The results are presented in the table. Based on the information in the table answer the below questions:

Age groups

Number of participants

Proportion of female

Relative frequency of participants

15 years or younger

10

0.4

16-25 years

25

0.6

26-30 years

10

1.0

31 yearsor older

2

1.0

• Are the age groups mutually exclusive?
• Based on the number of participants, can you argue for or against this sample being representative of the age groups in city A?
• How many males and females were included in the study?
• Calculate the relative frequencies in the first right column.
• The information displayed in the above table relates to which statistical paradigm: descriptive or inferential? Explain your answer.