Exercise

Exercise 3. Summarizing averages

Now we will repeat the exercise and generate only the average blood pressure for 20-29 year old females. For this exercise, you should review how to use the place holder . in dplyr or the pull function.

Instructions

100 XP

Modify the line of sample code to assign the average to a numeric variable called ref_avg using the . or pull.

Take Hint (-30 XP)