Data on systolic blood pressure, along with smoking status and weight status, were collected from a sample of 500 adults. The data have been saved in the Datasets section of the Teams Home Page as:

Assessment data > Quizzes > Quiz0 - Practice > bloodpressure.rds

The dataset contains the following three variables:

• systolic_bp: Systolic blood pressure (mmHg)
• smoke: 1=smoker or 0=non-smoker
• overwt: 1=normal, 2=overweight, or 3=obese

What is the mean systolic blood pressure? Provide your answer with the appropriate number of decimal places for inclusion in a report to the Ministry of Health.