In an RCT comparing a new pain reliever to a placebo, 300 pa…

In an RCT comparing a new pain reliever to a placebo, 300 participants were randomized evenly between the treatment and control groups. After the trial, 90 participants in the treatment group reported pain relief, while 45 participants in the control group reported pain relief. Calculate the odds ratio (OR) of pain relief for the treatment group compared to the control group.