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Student Statement
I am able to accurately calculate the mean and median of any given set of data (using both lists of data and frequency tables).
I am able to decide which measure of center would be better to use to describe a given set of data.
Common Core Standards
ID.A.2: Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets.
ID.A.3: Interpret differences in shape, center, and spread in the context of the data sets, accounting for possible effects of extreme data points (outliers).
The following are examples of mistakes that should give you an idea what types of mistakes I am looking for at each level. There are a variety of possible errors while solving problems like this, so this is not an exhaustive list.
As a reminder, here is the scale that is used in class to determine your ability level for each topic:
Below you will find an option to use a randomized data set or a randomized frequency table. Use it to find the measures of center (mean and median). Reveal the answers with the "Check Answers" button. Round all numbers to the nearest thousandth when working through the problem.