L08_Statistics

L08_Statistics - Introduction to Statistics MEASURES OF...

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Introduction to Statistics
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MEASURES OF CENTER Mode -the most frequent data point in a set Median -the middle score in the set Mean, Average, or Arithmetic Mean -the sum of the scores in the set divided by the number of scores Example Data: Flight Time (s): 1.5, 2.0, 1.9, 2.6, 2.0, 1.4, 1.4, 1.4, 1.6 Flight Distance (m): 18, 11, 11, 2, 5, 4, 11, 8, 7
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Click to edit Master subtitle style Mode-the most frequent data point in a set Flight Time (s): 1.5, 2.0, 1.9, 2.6, 2.0, 1.4, 1.4, 1.4, 1.6 Flight Distance (m): 18, 11, 11, 2, 5, 4, 11, 8, 7 modetime=? modedistance=?
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Click to edit Master subtitle style Median-the middle score in the set (Hint: if there are an even number of terms, use a value halfway between middle terms) Flight Time (s): 1.5, 2.0, 1.9, 2.6, 2.0, 1.4, 1.4, 1.4, 1.6 Flight Distance (m): 18, 11, 11, 2, 5, 4, 11, 8, 7 mediantime=? mediandistance=?
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Click to edit Master subtitle style Mean, Average, or Arithmetic Mean-the sum of the scores divided by the number of scores Flight Time (s): 1.5, 2.0, 1.9, 2.6, 2.0, 1.4, 1.4, 1.4, 1.6 Flight Distance (m): 18, 11, 11, 2, 5, 4, 11, 8, 7 averagetime=? averagedistance=? Settime=15.8 #scores=9 averageA=1.76 Setdistance =77 #scores=9 averageB=8.6
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Mean vs Median The most important difference between the mean and the median is shown below. Observe what happens to a set of five scores when the largest one is made
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L08_Statistics - Introduction to Statistics MEASURES OF...

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