the-root-mean-square-rms-also-known-as-the-quadratic-mean-is-computed-by-using-t

Question

The root mean square (RMS), also known as the quadratic mean, is computed by using the following formula:

$RMS = \sqrt{\frac{Σ x^{2}}{n}}$

Find the RMS speed of a vehicle recorded at different times: $30 km slash h comma 50 km slash h comma 70 km slash h comma 90 km slash h$ . How does the result compare to the arithmetic mean?

Accepted Answer

$RMS equals 64.03 km slash h$ , which is higher than the arithmetic mean.

Answer

$RMS equals 64.03 km slash h$ , which is equal to the arithmetic mean.

Answer

$RMS equals 64.03 km slash h$ , which is lower than the arithmetic mean.

Answer

$RMS equals 64.03 km slash h$ , which is higher than the arithmetic mean.