Graphs

No.

a type of chart that contains both bars and a line graph, where individual values are represented in descending order by bars, and the cumulative total is represented by the line.

C on the calculator means Clear. So in other words you erase all of your calculations to start a new one. However CE on the other hand is used for clearing only one number and your entire calculation doesn't get erased.

By hand.

Yes.

There is no reason why any graph should start from any particular point.

A linear equation!

The general form, in n-dimensional space, is

a1x1 + a2x2 + ...+ anxn = c

where the ai and c are constants and the xi are variables.

A sector.

Bar graphs are used for qualitative or discrete [quantitative] data. Values between the bar categories are not possible an to emphasise that, the bars have gaps between them. Conversely, histograms are used for continuous data and so the values on the "category" axis form a continuum. To illustrate this, the bars touch on another.

I learned this well before the internet was widely available so did not need a website.

In a book on very elementary statistics.

The x-axis of a graph is always your independent variable and the y-axis is the dependent variable. The independent variable is so called because it can stand alone as data and does not depend on other information to make sense.

First by looking at your data, label the scale and draw bars to given data

Usually the x-axis.

They can cluster anywhere: it depends on what characteristic of what population is being measured.

sail

The Brandt Line, proposed by former German Chancellor Willy Brandt in 1980, is a conceptual division that separates the world into the wealthy "North" and the poorer "South." It highlights global inequalities in development, with the North representing industrialized nations and the South encompassing developing countries. The line was introduced in the context of the Brandt Report, which aimed to address economic disparities and promote international cooperation for development. Although the line is not a strict geographical boundary, it underscores ongoing issues of global inequality and development challenges.

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When the domain or range of the data are clearly far from the origin, or where the data consist of two separate clusters.

Sometimes it is, other times it is not. If you want to display the favourite fruit of a school class, a continuous line graph would be totally useless.

The change in the y-value over the x-value, the slope, m, (y1-y2)/(x1-x2).

A multiple line-chart.

The main advantage is that it allows you to see how different dependent variables change according to changes in the same "independent" variable.

It is relatively simple to use two vertical axes for the dependent variables, but the degree to which the two axes relate to one another is arbitrary. Furthermore, if the ranges of the dependent variables are very different the chart becomes unreadable.

The rate of change indicates the change in one variable per unit change in a second variable at (or around) that level for the second variable.