Question $1.$ This Question is compulsory.

a$)$ Expand the acronyms: DBMS; CSV and ERD

b$)$ What is the primary difference between discrete and continuous data types? Give an

example of both data types.

$(5$ marks$)$

c$)$ What is the primary difference between a discrete qualitative and a discrete quantitative

data type? Give an example of both data types.

$(5$ marks$)$

d$)$ What is the difference between $.$CSV and a $.$TXT file and give one reason why they are

used in preference to a XLSX file for providing your data to other data explorers.

$(5$ marks$)$

e$)$ Is linear regression a typical application in data exploration? Please give reasons why.

$(5$ marks$)$

f$)$ Describe the mean and median and identify which are resilient to outliers.

$(5$ marks$)$

g$)$ What is the difference between data cleaning and data transformation?

$(5$ marks$)$

h$)$ What is the correct image to represent the distribution, mean and inter quartile range of

data?

$(5$ marks$)$

i$)$ Why in the age of big data is inferential statistics still significant in modern data

exploration and data analytics?

$(5$ marks$)$

j$)$ Identify three advantages of a DataBase over the use of other paper or electronic file

stores.

$(5$ marks$)$

$($Total $50$ marks$)$