9 The following are boxplots for the time spent on an online

9. The following are boxplots for the time spent on an online order for 2 different Internet browsers. a) Find Q1 for the Internet Explorer users. b) Find the range for the Firefox users.

Solution

Q1 of box whisker plot is the median of the first half of samples.

and it is represented in box whisker plot as a starting point of rectangle.

So, here Q1 for internet explorer is = 5 minutes.

Range is starting point of line to ending point of line including rectangle in between.

So, Range for firefox browser is (5,25)