The correct answer is: TRUE.
<u>In order to measure qualitative data quantitively, categorical variables are used</u>. These type of variables are defined by a set of positive numbers, and each number is connected to a nominal category, which has been defined based on a qualitative property.
For example, if conducting a research about holiday patterns, one of the variables registered aims to measure the season in which people travel the most hence the following categories are defined: spring (=1), summer (=2), autumn (=3) and winter (=4). This is a categorical variable. If it only had two categories it is denominated a dummy or binary variable (values: 0, 1).
An ionic solution would be able to conduct electricity where as the covalent would not so if you have a conductivity tester which are available in most labs you should be able to distinguish between the 2
1/2, line rises
we are given the following pair of points and and we are to find the slope of line passing through these points:
(-1, 3) and (3, 5)
slope = 
= 
= 
= 
the slope of this line is 1/2 which is positive so the line rises from bottom left towards top right.
