Cent : A cent is $\frac{1}{100}$ of a dollar.

Fraction : A fraction is a number that can be written as $\frac{a}{b}$ with an integer $a$ and a natural numbers $b.$ A fraction $\frac{a}{b}$ is the result of the division $a\div b.$ Examples of fractions are $\frac{1}{2}, -\frac{2}{3}$ and $\frac{3}{2}.$

Box plot : A way to visualize data. The left end of the box plot coincides with the minimum of the data. Similar the right end of the box plot visualizes the maximum of the data. The left and right end of the box in the box plot correspond to the 25th and 75th quantile of the data and the line in the box represents the median of the data.

Line : A line AB is a one-dimensional shape that includes the points A and B, all the points on the line segment in between A and B and all the points of the straight extension of the line segment beyond A and B. A line does not have an endpoint.

Median : The median of n numbers is defined as the $\frac{n}{2}$-th biggest number in case of even $n$ and as the average of the $\frac{n-1}{2}$-th biggest number and the $\frac{n+1}{2}$-th biggest number in case of odd $n.$ The median of numbers is a statistic that can be representative of a typical element of a collection of numbers. It is an alternative to the average of numbers.