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WorksheetsUnit 4 Review
Total questions: 13
Worksheet time: 1hrs 5mins
The graph shows the relationship between the size of a computer monitor and the cost. Which conclusion is most supported by this graph?
There is a positive correlation between the size of the monitor and the cost of the monitor.
The cost of the monitor decreases as the size of the monitor increases.
There is a negative correlation between the size of the monitor and the cost of the monitor.
There is no correlation between the size of the monitor and the cost per inch of monitor
A hospital wants to offer more appealing food choices for their patients. A nurse creates a survey to find out what the patients' favorite food is. Which sampling methods are valid ways to obtain a representative sample of the entire hospital? Pick all that apply.
Ask the patients on the first floor what their favorite food is.
Survey every patient whose room number ends in 5.
Only survey the first 50 patients to wake up in the morning.
Put every room number in a hat, pull out 50 numbers randomly, and only survey the patients in those rooms.
The scatterplot shows the number of participants in the bowling league over a period of years. What kind of correlation exists in these data?
Positive correlation
Negative correlation
No correlation
The following graph shows the relationship between the age in months of infants and how much they weigh in pounds. What conclusion can be drawn from the graph?
As the months increased, the weight decreased.
As the months increased, the weight stayed the same.
As the months increased, the weight also increased.
There is no correlation on the graph, therefore no conclusion can be drawn.
Ms. Abe teaches 7th grade math. She has 123 students. Ms. Abe randomly draws 5 names from each class period and asks those students how many minutes they spend on math homework each week. What kind of sample is Ms. Abe taking?
Convenience Sample
Simple Random Sample
Cluster Sample
Stratified Sample
A scientist collected data to show the relationship between the process input and the quality characteristics. This set of data is shown in the scatterplot. What conclusion can you make that is supported by this data?
There is a positive correlation between the process input and the quality characteristics
There is a negative correlation between the process input and the quality characteristics
There is no correlation between the process input and the quality characteristics
The graph shows the number of boys and girls in each class at an elementary school. What type of correlation exists in these data?
Positive correlation
Negative correlation
There is no correlation.
Last week, we collected the heights and shoe sizes of various students and then we graphed that data. We found that there was a positive correlation between peoples' shoe sizes and heights. Maya says that this means all tall people have big feet and all short people have small feet, but Joni says that's not the case. Who is correct and why?
Maya, because a person only gets taller if their feet get bigger too.
Maya, because positive correlation means increased shoe size causes increased height.
Joni, because there are other variable, like age or weight, that are correlated with both shoe size and height.
Joni, because all short people have big feet and all tall people have small feet.
Is there enough information to know if there is causation, or is there only correlation?
When a student gets recognized for getting the best score on a test.
Correlation between earning the best score and being recognized.
Causation between earning the nest score and being recognized.
Is there enough information to know if there is causation, or is there only correlation?
When the number of people getting Netflix subscriptions increases, so do the incidents of sleepwalkers.
Correlation between Netflix subscriptions and the number of sleepwalkers.
Causation between Netflix subscriptions and the number of sleepwalkers.
Is there enough information to know if there is causation, or is there only correlation?
When an airplane engine stops working, the pilot is required to put on his parachute.
Correlation between the engine stopping and putting on a parachute.
Causation between the engine stopping and putting on a parachute.
Is there enough information to know if there is causation, or is there only correlation?
Math books are more likely to catch fire than any other books.
Correlation between the type of book and it catching fire.
Causation between the type of book and it catching fire.
What does the scatterplot indicate about the relationship between the amount of water and beans produced? Select all that apply.
There is a positive correlation between the amount of water and the beans produced.
There is a negative correlation between the amount of water and the beans produced.
As more water is applied, the amount of beans produced decreases.
As more water is applied, the amount of beans produced increases.
