A study on facial expression and anxiety was conducted to determine if anxious people exhibit more facial expressions than non-anxious people. The number of facial expressions exhibited in response to 25 emotional cues for 25 anxious subjects and 25 non-anxious subjects are shown below (each group includes a different set of 25 people).
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Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
A study on facial expressions and anxiety was conducted to determine if anxious people exhibit more facial expressions than non-anxious people. The number facial expressions exhibited in response to 25 emotional cues for 25 anxious subjects and 25 non anxious subjects are shown below (each group includes a different set of 25 people)
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