Review Scatterplots

Front

What type of association does this graph have? Options: positive, negative, none, all of the above

Back

positive

Front

What type of correlation does this scatterplot display? Options: Positive, Negative, No Correlation

Back

Negative

Front

Explanatory variable in the relationship between seeds planted and fruit grown.

Back

The number of seeds planted

Front

What is the response variable (RV) when investigating the relationship between time spent shopping and the number of items bought?

Back

The number of items bought

Front

Correlation coefficient for the given graph: -1, 0, 0.5, 1

Back

0.5

Front

Estimate the correlation coefficient for this scatterplot.

Back

r = -0.9

Front

Based on the scatterplot, what is the best prediction of the speed of sound when the air temperature is 50 degrees C? Options: 350 m/s, 362 m/s, 358 m/s, 348 m/s

Back

358 m/s

Front

Based on the scatterplot, what is the best prediction of the resting heart rate of a person who exercises an average of 8 hours each week? Options: 30 beats per minute, 50 beats per minute, 40 beats per minute, 60 beats per minute

Back

50 beats per minute

Front

Back

617.51 miles

Front

George scored 80 on the first test. His final exam score was 85. What is the value of his residual using the equation y=25+0.7x?

Back

4