AP Statistics Curriculum 2007 EDA Center

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===Measurements of Central Tendency===
===Measurements of Central Tendency===
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Example on how to attach images to Wiki documents in included below (this needs to be replaced by an appropriate figure for this section)!
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There are three main features of all populations (or data samples) that are always critical in uderstanding and intepreting their distributions. These characteristics are '''Center''', '''Spread''' and '''Shape'''. The main measure of centrality are '''mean''', '''median''' and '''mode'''.
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<center>[[Image:AP_Statistics_Curriculum_2007_IntroVar_Dinov_061407_Fig1.png|500px]]</center>
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===Approach===
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===Mean===
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Models & strategies for solving the problem, data understanding & inference.  
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Suppose we are interested in the long-jump performance of some students. We can carry an experiment by randomly selecting 8 male statistics students and ask them to perform the standing long jump.  In reality every student participated, but for the ease of calculations below we will focus on these eight students.  The long jumps were as follows:
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{| class="wikitable" style="text-align:center; width:75%" border="1"
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|+Long-Jump (inches) Sample Data
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|-
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| 74 || 78 || 106 || 80 || 68 || 64 || 60 || 76
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|}
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<math>\overline{y} = {1 \over 8} (74+78+106+80+68+64+60+76)=75.75 in.</math>
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* TBD
 
===Model Validation===
===Model Validation===

Revision as of 01:52, 28 January 2008

Contents

General Advance-Placement (AP) Statistics Curriculum - Central Tendency

Measurements of Central Tendency

There are three main features of all populations (or data samples) that are always critical in uderstanding and intepreting their distributions. These characteristics are Center, Spread and Shape. The main measure of centrality are mean, median and mode.

Mean

Suppose we are interested in the long-jump performance of some students. We can carry an experiment by randomly selecting 8 male statistics students and ask them to perform the standing long jump. In reality every student participated, but for the ease of calculations below we will focus on these eight students. The long jumps were as follows:

Long-Jump (inches) Sample Data
74 78 106 80 68 64 60 76

\overline{y} = {1 \over 8} (74+78+106+80+68+64+60+76)=75.75 in.


Model Validation

Checking/affirming underlying assumptions.

  • TBD

Computational Resources: Internet-based SOCR Tools

  • TBD

Examples

Computer simulations and real observed data.

  • TBD

Hands-on activities

Step-by-step practice problems.

  • TBD

References

  • TBD



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