1. Multiple Linear Regression
MLR – the model is a linear equation with at least two explanatory variables (independent) and one explained variable (dependent)

2. The relationship between examination mark, study time and intelligence:
Examination mark =  Study time +  Intelligence
Examination mark = 0.65 Study time Intelligence
A student with an intelligence score of 110 who studies for 30 hours per week will obtain the following examination mark:
Examination mark = (0.65 x 30) + (0.30 x 110)
= = 52.5
If the same student studies for 40 hours then:
Examination mark = (0.65 x 40) + (0.30) x 110
= = 59