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<?xml version="1.0" encoding="UTF-8" ?>
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<XMLDB PATH="mod/quiz/report/statistics/db" VERSION="20130920" COMMENT="XMLDB file for Moodle mod/quiz/report/statistics"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:noNamespaceSchemaLocation="../../../../../lib/xmldb/xmldb.xsd"
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>
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<TABLES>
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<TABLE NAME="quiz_statistics" COMMENT="table to cache results from analysis done in statistics report for quizzes.">
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<FIELDS>
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<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
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<FIELD NAME="hashcode" TYPE="char" LENGTH="40" NOTNULL="true" SEQUENCE="false" COMMENT="sha1 hash of serialized qubaids_condition class. Unique for every combination of class name and property."/>
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<FIELD NAME="whichattempts" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false" COMMENT="bool used to indicate whether these stats are for all attempts or just for the first."/>
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<FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
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<FIELD NAME="firstattemptscount" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
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<FIELD NAME="highestattemptscount" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
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<FIELD NAME="lastattemptscount" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
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<FIELD NAME="allattemptscount" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
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<FIELD NAME="firstattemptsavg" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
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<FIELD NAME="highestattemptsavg" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
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<FIELD NAME="lastattemptsavg" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
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<FIELD NAME="allattemptsavg" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
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<FIELD NAME="median" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
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<FIELD NAME="standarddeviation" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
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<FIELD NAME="skewness" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="10"/>
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<FIELD NAME="kurtosis" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
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<FIELD NAME="cic" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="10"/>
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<FIELD NAME="errorratio" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="10"/>
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<FIELD NAME="standarderror" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="10"/>
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</FIELDS>
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<KEYS>
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<KEY NAME="primary" TYPE="primary" FIELDS="id"/>
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</KEYS>
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</TABLE>
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</TABLES>
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</XMLDB>
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