Ch. 6 Test review

Front

What percent of basketball players are female?

Back

52%

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

What is a biased sample?

Back

A biased sample is a subset of individuals that does not accurately represent the larger population.

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot.

Front

What is the equation of the line of best fit for the given data?

Back

y = 5/3x + 375

Front

How do you make a prediction based on a line of best fit?

Back

You can use the equation of the line to estimate the value of y for a given x.

Front

What is a positive correlation?

Back

A positive correlation means that as one variable increases, the other variable also increases.

Front

What is a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable decreases.

Front

What does no correlation mean?

Back

No correlation means there is no relationship between the two variables.

Front

What is the resting heart rate after 6 hours of exercise a week?

Back

55