Question

use the box-and-whisker plot to answer the questions below.
(a) what is the difference of the largest number and the smallest number of waves (charmaine s what is the range of the data?)
(b) which of these best describes the numbers of waves charmaine surfed last summer?
the number of waves she surfed was below 35 on more days than it was above 35.
the number of waves she surfed was above 35 on more days than it was below 35.
the number of waves she surfed was below 35 for the same number of days that it was

Explanation:

Step1: Find the largest and smallest values

From the box - and - whisker plot, the smallest value (left - most point) is \(20\) and the largest value (right - most point) is \(50\).

Step2: Calculate the range

The range \(R\) is given by the formula \(R=\text{Max}-\text{Min}\). Substituting the values, we have \(R = 50-20\).

In a box - and - whisker plot, the median divides the data into two halves. If the median is \(35\) (assuming the middle line of the box is at \(35\)), the length of the whisker and box on either side of the median can give an idea of the spread. The left side (below the median) has more "length" (more data points spread out in that region) compared to the right side (above the median).

Answer:

\(30\)

For part (b):