a botanist measured the heights (in cm) of several plants of a certain species. the box - and - whisker plot…
a botanist measured the heights (in cm) of several plants of a certain species. the box - and - whisker plot (sometimes called a boxplot) summarizes these heights. use the box - and - whisker plot to answer the following. (a) what is the tallest height? (b) what is the median height? (c) what is the first quartile ($q_1$) of the heights?
Answer
Explanation:
Step1: Recall box - and - whisker plot properties
In a box - and - whisker plot, the left - most end of the left whisker is the minimum value, the left edge of the box is the first quartile ($Q_1$), the line inside the box is the median, the right edge of the box is the third quartile ($Q_3$), and the right - most end of the right whisker is the maximum value.
Step2: Identify the first quartile
Looking at the box - and - whisker plot, the left edge of the box is at 25. So, $Q_1 = 25$.
Answer:
25