Using a scientific calculator on the constants $\pi,\sqrt2,e,\sqrt3,1.414213,2.718282,3.1415,1.732051$, the mean to six decimal places is:

1. Enter all eight constants into the calculator's statistics mode. 2. The list is $\pi,\sqrt2,e,\sqrt3,1.414213,2.718282,3.1415,1.732051$ — note $\sqrt2$ and $1.414213$ are separate entries. 3. Read off the mean key, which returns $\bar{x}=2.251523$ to six decimal places. 4. The other three values come from entering the wrong count of items or mixing the mean and standard deviation keys. _Source: NECTA ACSEE 2023 Advanced Mathematics 142/1, Question 1: Calculating Devices_