Scatterplots

Front

The police department tracked the number of ticket writers and number of tickets issued for the past 8 weeks. The scatter plot shows the results. Which statement is true?

Back

More ticket writers results in more tickets issued.

Front

What kind of relationship between class study time and test scores is shown on the scatter plot? Options: No correlation, Positive correlation, Negative correlation, Positive then negative correlation

Back

Positive correlation

Front

A fifth grade class conducted a 5-minute experiment that involved heating time and water temperature. The results of the experiment are represented in this line graph. What prediction can be made based on the information gathered?

Back

The water temperature increases as the heating time continues.

Front

The following scatter plot shows the weights and lengths of some dinosaurs. Which statement accurately describes the information? Options: The information shows a positive correlation. The weight of a dinosaur tends to increase according to its length., The information shows a negative correlation. the weight of a dinosaur tends to decrease according to its length., The information shows no correlation. The weight and length vary according to the type of dinosaur., The information shows no correlation. The relationship between the weight and length of a dinosaur is uncertain.

Back

The information shows a positive correlation. The weight of a dinosaur tends to increase according to its length.

Front

Why was Trevor's conclusion about a positive correlation between class size and number of absences incorrect?

Back

The data show no relationship between class size and number of absences.

Front

This scatterplot could show the relationship between which two variables? Options: speed of an airplane (x) vs. distance traveled in one hour (y), outside air temperature (x) vs. air-conditioning costs (y), age of an adult (x) vs. height of an adult (y), distance traveled (x) vs. gas remaining in the tank (y)

Back

distance traveled (x) vs. gas remaining in the tank (y)

Front

Which graph best shows a positive correlation between the number of hours studied and the test scores? Options: Graph A, Graph B, Graph C, Graph D

Back

Graph A

Front

Which data will most likely show a negative correlation when graphed on a scatter plot? Options: The outside temperature and the number of people wearing gloves., The distance a student lives from school and the amount of time it takes to get to school., The number of visitors at an amusement park and the length of the lines for the rides., A student's height and grade point average.

Back

The outside temperature and the number of people wearing gloves.

Front

Relationship between traffic volume and vehicle speed on a freeway (scatter plot for 50 days in 1999).

Back

As traffic volume increases, vehicle speed decreases.

Front

Ms. Ochoa recorded the age and shoe size of each student in her physical education class. This graph shows her data. Which of the following statements about the graph is true? Options: The graph shows a positive trend., The graph shows a negative trend., The graph shows a constant trend., The graph shows no trend.

Back

The graph shows no trend.