Answer:
a. True
Step-by-step explanation:
A numerical data can be defined as a data set that is expressed in numbers only or a data set consisting of numbers rather than words. A numerical data is also known as a quantitative data.
Basically, numerical data are classified into two (2) main categories and these are;
1. Discrete data: a discrete data is a data set in which the number of possible values are either finite or countable. For instance, the value of a fair die, number of sweets in a jar, number of eggs in a crate etc.
2. Continuous data: a continuous data is a data set having infinitely many possible values and those values cannot be counted, meaning they are uncountable. Any quantity such as height, volume, weight, density, length, pressure, temperature, speed, distance, time are generally a continuous data.
In Statistics or Business, one of the most preferred way of summarizing and communicating numerical information from one person to another is with tables, charts, and graphs.
A table is made up of cells that comprises of rows columns.
A chart can be defined as an effective medium used for displaying data graphically or in a pictorial form.
There are four (4) main types of chart used in the field of science and these includes;
I. Bar chart.
II. Histogram.
III. Cartesian graph.
IV. Pie chart.
A graph can be defined as the graphical representation of data (informations) on horizontal and vertical lines i.e x-axis and y-axis respectively.