Question 1
Age- Ratio
Sex – Nominal
Level of education – Ordinal
Civil state – Nominal
Level of aggressiveness – Ordinal
Favourite personal feature – Nominal
Personal income – Ratio
Intelligence rate – Interval
Prestige – Ordinal
Religion – Nominal
Level of generosity – Ordinal
Number of children – Ratio
Social class – Ordinal
Magnitude of Earthquakes – Interval
Number of pets – Ratio
Temperature – Interval
Favourite type of movies – Nominal
Practiced sports – Nominal
Weight – Ratio
Question 2
The requisite formula for growth rate is given below.
Growth rate in nth year = (Oil price in nth year – Oil price in (n-1)th year)/ (Oil price in (n-1)th year)*100
CAGR = [(Oil price in mth year/Oil price in nth year)m-n -1]*100
Based on the above formulas and the given data, the following growth rates have been computed for each year.
Question 3
- Coefficient of variation for each of the country is computed as shown below.
For country 1: Spain
Now,
Hence,
For country 1: Portugal
Now,
Hence,
- Coefficient of correlation would be taken into consideration in order to decide whether both the series are statistically correlated or not.
It can be seen from the above that correlation coefficient comes out to be 0.8707 close to 1 which indicates that both the series are strongly positively correlated.
