A student performed this experiment and obtained the following concentration
values: \(7.5360 \times 10^{-4} \mathrm{M}\)
\(7.5477 \times 10^{-4} \mathrm{M},\) and \(7.5411 \times 10^{-4} \mathrm{M}\)
a. What is the mean concentration?
b. What is the standard deviation of these results?
