Waves in water are transverse. This means that the vibrations causing the waves are perpendicular to the direction of energy transfer. As this little boat demonstrates, you can see that the waves are ...

The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used to ...

Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Sydney Saporito / Investopedia A frequency distribution ...