stats_ans.pdf

This is easily done by adding them together and

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be half way between them. This is easily done by adding them together and dividing by __________. Example: Put the following numbers in order. 3, 13, 7, 5, 21, 23, 23, 40, 23, 14, 12, 56, 23, 29 3, 5, 7, 12, 13, 14, 21, 23, 23, 23, 23, 29, 40, 56 There are now fourteen numbers and so we don't have just one middle number, we have a pair of middle numbers:

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______21_____ and __23_________ To find the value half-way between them, add them together and divide by 2: And, so, the Median in this example is _____22_______. How to Find the Mode or Modal Value The mode is simply the number which appears ______most often______________________. To find the mode or modal value requires you to put the numbers you are given into a table. Find the mode of these numbers: 3, 7, 5, 13, 20, 23, 39, 23, 40, 23, 14, 12, 56, 23, 29 3 (1) 56 (1) 7 (1) 29 (1) 5 (1) 13 (1) 20 (1) 23 (4) 39 (1) 40 (1) 14 (1) 12 (1) Accuracy & Precision Accuracy is how close a measured value is to the _____real___________ value. Precision is how close the measured values are to ___each other_____________________. Examples of Precision and Accuracy : number count
Low Accuracy High Accuracy High Accuracy High Precision Low Precision High Precision So, if you are playing soccer and you always hit the left goal post instead of scoring, then you are not ____accurate_________________, but you are ________precise_______________!

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