So what is the mean BMI of our sample above?
given the following information from the course material:
Calculating the mean manually for large data sets would clearly be tedious, and professional statisticians use computer tools instead. However, just glance at the normal distribution in Figure 5 and the mean jumps out at you: it’s the BMI at which the curve reaches its highest point. Note, though, that this is true for the normal distribution only. As you will learn later in the part, there are other distributions that don’t have this property.
It appears that the mean BMI is 27.