5A-Review for 1st Semester Exam

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What type of correlation does a scatter plot show if there is no discernible pattern?

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The correlation is 'No correlation'.

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What is the definition of a variable in mathematics?

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A variable is a symbol used to represent an unknown value.

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What does it mean to simplify an expression?

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To simplify an expression means to reduce it to its simplest form.

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What is a scatter plot?

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A scatter plot is a graph that shows the relationship between two variables.

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What is the formula for calculating the slope of a line?

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What is the difference between positive and negative correlation?

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Positive correlation means as one variable increases, the other also increases; negative correlation means as one variable increases, the other decreases.