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interval to use for a range of 12 to 39 for a bar graph

Q: Describe the interval you would use in a bar graph if the data ranges from 12 to 39 units?

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The right answer is 3.( I think :D )

The answer is 3 ;)

A line segment, starting at 4 units from the origin and finishing at 10 units.

Let's say you have 2 bars, one of which is 5 and one of which is 15 (units not important). If you have the interval at 1 unit, then both bars would be relatively large. If you set the interval at 10 units, however, the bars suddenly seem much smaller. It's not because they ARE smaller, but because the interval makes them appear as such. So if someone wanted to skew a statistic, such as "Number of deaths by cigarettes in 2009", they could set the interval at a high number to make it appear to be a smaller bar, which gives the impression that it's not that big of a deal. Conversely, if they wanted to skew a statistic the other way, such as "Units Produced in March", they could set the interval at a very low number which would make the bar appear very large, giving the effect of a large amount produced.

the scale would be how many units or numbers you go by each line in the line graph.

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The right answer is 3.( I think :D )

Scales

The answer is 3 ;)

6

3

A line segment, starting at 4 units from the origin and finishing at 10 units.

A graph is used for graphing lines and points. A graph consist of rows columns and units.

Unless otherwise specified, they are simply called 'units'.

Unless otherwise specified, they are simply called 'units'.

To shift a funcion (or its graph) down "a" units, you subtract "a" from the function. For example, x squared gives you a certain graph; "x squared minus a" will give you the same graph, but shifted down "a" units. Similarly, you can shift a graph upwards "a" units, by adding "a" to the function.

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