Question

1. there are two sets of rainfall data for two different time periods in the same location.

period 1: 2.3, 2.1, 2.2, 2.2, 2.2, 2.1, 2.4, 2.5, 2.2, 2.0, 1.9, 1.9, 2.1, 2.2, 2.3
period 2: 2.3, 2.1, 3.3, 1.5, 3.6, 1.6, 3.0, 1.1, 4.7, 2.1, 2.4, 1.9, 2.8, 0.5, 2.3
what type of visual display could be used to compare the two data sets?
box - and - whisker
scatter plot
neither of these
both of these

Explanation:

A box - and - whisker plot (box plot) is used to compare distributions. It shows the five - number summary (minimum, first quartile, median, third quartile, maximum) of a data set. For two data sets (Period 1 and Period 2 rainfall data), we can create two box plots (either on the same scale or side - by - side) to compare their central tendency (median), spread (inter - quartile range), and range.

A scatter plot is used to show the relationship between two variables (e.g., \(x\) and \(y\) variables). Here, we have two univariate data sets (rainfall in two different time periods), and there is no relationship between two variables to be shown.

Answer:

box - and - whisker