statistics notes

# statistics notes - Class boundaries determine where we put...

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Statistics are studying how to make sense of data Science of Statistics is examining statistical problems. Statistics is making samples to make inferences as a population as a whole. We organize data into something called a data set. Once we gather data, we present data with a graph; uses a relative frequency Histogram. Outlier is a value in the data set that is really outside the others. In a data set, there are figures. We next figure out how many classes we need. We can do this by finding the range. Range can tell us how many classes we use. Class width is how wide the classes are. Class width= range/ number of classes we want.
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Unformatted text preview: Class boundaries determine where we put our classes-Need lowest class contains lowest measurements. Significant Digit is the number of decimal places we use Class frequency is the number of measurements in the class (mode) How to build a relative frequency histogram: 1. Gather up values in a data set -> find the range = highest value – lowest value 2. Divide Histogram into classes (My choice) 3. Find the class width (Divide the range with how many classes we divided) 4. Graph 5. Find the Class frequency and relative frequency 6. Divide the number of measurements in a class by the total number of measurements 7....
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