Question 1 The measure of association to calculate ?my answer (positive association)

Question 2 calculate your work and round to the 100^th decimal place at each step. need assistance with calculation

example : Viral load suppressed Viral load not suppressed total

In continuous care 200 100 300

Not in continuous care 150 350 500

total 350 450 800

My calculations (a*d)/(c*b)