Describe what it means that statistical procedures can "summarize data and reveal what is typical and atypical within a group".
What will be an ideal response?
Ans: Answer would ideally include: Research often yields hundreds or thousands of items of numerical data that, until summarized, cannot be interpreted meaningfully. Suppose you had the raw measurements of heights, weights, and intelligence quotient (IQ) scores for all of last year’s high school graduates in the state of Florida. That would give you thousands of pages of numerical data that, if you tried to make sense of them, might leave you scratching your head. Statistics are used to reduce masses of data into information more easily understood by showing what is average, how much difference exists between highest and lowest values, what the most commonly occurring value is, and how spread out the values are. Knowing those things, you would have a much clearer picture of various characteristics of recent high school graduates in Florida.
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