CIA #3 Pre-Assessment

Front

What is the equation of the line of best fit for the data determined by Mrs. Wang?

Back

Front

If a student studies for 6 hours, what grade are they likely to receive according to Mrs. Wang's data?

Back

The student is likely to receive a grade of 95.

Front

What is the likely shape of the data set {18, 50, 68, 78, 81, 94, 98}?

Back

The shape of the data is skewed left.

Front

Which equation represents the line of best fit for the given data?

Back

Front

What does the equation y = 2.65x - 40 indicate about the correlation between hours worked and amount paid?

Back

The correlation is positive.

Front

Define 'line of best fit'.

Back

A line that best represents the data on a scatter plot, showing the trend of the data.

Front

What does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Front

What is the purpose of determining the line of best fit?

Back

To make predictions based on the relationship between two variables.

Front

What is a scatter plot?

Back

A graph that uses dots to represent the values obtained for two different variables.