Two scientific articles report results from experiments meas…

Twо scientific аrticles repоrt results frоm experiments meаsuring reаction time (in milliseconds).Article A reports a mean reaction time of 520 ms with a variance of 400.Article B reports a mean reaction time of 520 ms with a standard deviation of 20 ms.As a reminder, variance is used to approximate how far values are from the average by squaring the differences, so values above and below the average (i.e., positive and negative) do not cancel out. Standard deviation describes how far a typical value differs from the average using the same units as the original data.Which statement best explains what is happening?