The data below shows the ages of students 1: in a certain school, and the corresponding number at them having smartphones 3:. find the equation oi the regression line and predict the number oi students with smartphones with the age of 20. Consider the variables to be correlated and that the correlation is signicant. Age No. of Students with (x) smartphones (y) 1 3 'I 9 14 32 16 3? 17 45 1 9 49