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Bar graphs can compare two sets of data, as well as line graphs and circle graphs.
To better improve my answer, double line graphs and double bar graphs compare two sets of data. Circle graphs cannot however, because they compare parts of a whole instead of, as a bar graph would, the amount of something. A circle graph is also incapable of showing data growth over a period of time, as line graphs do. All in all, circle graphs cannot compare to sets of data, and bar graphs and line graphs must be doubled to do so.
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What are the types of smooth-line graph?
1. PICTORIAL GRAPHS. These are the kind found in mathematics and physics textbooks. Their purpose is to simply and clearly illustrate a mathematical relation. No attempt is made to show data points or errors on such a graph.2. DISPLAY GRAPHS. These present the data from an experiment. They are found in laboratory reports, research journals, and sometimes in textbooks. They show the data points as well as a smooth line representing the mathematical relation.3. COMPUTATIONAL GRAPHS. These are drawn for the purpose of extracting a numerical result from the data. An example is the calculation of the slope of a straight line graph, or its intercepts.
Is it true that in large data sets the mean is always one of the data values?
No. Here's one set of data where the mean is not one of the values: a set of 250,000 numbers. 125,000 of them are "1", 125,000 are "3". The mean of this data set is "2", which is not among the data.
True or false Graphs are representations of equations?
true
Ratio between two sets of measurements?
Oh, dude, the ratio between two sets of measurements is just a way to compare the sizes of things. It's like looking at how many times one thing fits into another. So, if you have, like, 5 apples and 2 oranges, the ratio of apples to oranges would be 5:2. It's just a fancy math term for saying "this many of this, that many of that."
What polygon has 2 sets of parallel lines?
parallelogram
