91影视

A score in the ${95}^{th}$ percentile is a figure on a scale of $100$ that represents the percent of a distribution that is equal to or below it.

The highlighted point refers to pupils who received or sent$200$ text messages, which is in the top $80\%$ of the class. The highlighted point corresponds to the ${80}^{th}$ percentile. This means that in a two-day period, $80\%$ of females sent and received less than $212$ texts.

The median has the property that $50\%$ of all data values are less than the median, hence the median and the ${50}^{th}$ percentile are the same. Find the value on the horizontal axis that corresponds to $50$ on the vertical axis. As a result, the median number of text messages exchanged is $115$. As a result, the median of the text messages sent is $115$