Harmonic mean of $19$, $22$

Find the harmonic mean of $19$, $22$.

The harmonic mean of data is given by the formula $H = \frac{n}{\sum_{i=1}^{n} \frac{1}{x_{i}}}$, where $n$ is the number of values and $x_i, i=\overline{1..n}$ are the values themselves.

Since we have $2$ points, $n = 2$.

The sum of the reciprocals of the values is $\frac{1}{19} + \frac{1}{22} = \frac{41}{418}$.

Therefore, the harmonic mean is $H = \frac{2}{\frac{41}{418}} = \frac{836}{41}$.

The harmonic mean is $\frac{836}{41}\approx 20.390243902439024$A.