To Define a Variable by a Result from the Equal Sign

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To Define a Variable by a Result from the Equal Sign

1. Use the var function to compute the variance of a set of numbers.

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2. Assign the function to variable V.

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3. Evaluate V symbolically.

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<region id="ID0EAURKB" actualWidth="174.92000000000002" actualHeight="81.4" top="326.40000000000003" left="38.400000000000006" xmlns="http://schemas.mathsoft.com/worksheet50">
  <math resultRef="6">
    <symEval xmlns="http://schemas.mathsoft.com/math50">
      <apply>
        <id labels="FUNCTION" xml:space="preserve">var</id>
        <matrix rows="4" cols="1">
          <real>1.2</real>
          <real>3.7</real>
          <real>2.5</real>
          <real>1.9</real>
        </matrix>
      </apply>
      <command>
        <placeholder />
      </command>
      <symResult>
        <apply>
          <id labels="FUNCTION" xml:space="preserve">var</id>
          <matrix rows="4" cols="1">
            <real>1.2</real>
            <real>3.7</real>
            <real>2.5</real>
            <real>1.9</real>
          </matrix>
        </apply>
      </symResult>
    </symEval>
    <resultFormat>
      <matrix size="12,12" offset="0,0" show-indices="false" expand-nested-arrays="false" />
    </resultFormat>
  </math>
</region>

You cannot evaluate var symbolically.

4. Evaluate V symbolically.

You can, however, evaluate V symbolically.

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