A veterinarian collected data on the association between age and mass of Boxer puppies. A line of best fit was computed. The equation for the line is y=17.5x+480.
Which BEST interprets the slope of the linear model?
(1 point)
Responses
Each additional day is associated with an additional 480 grams of mass.
Each additional day is associated with an additional 480 grams of mass.
Each additional day is associated with an additional 17.5 grams of mass.
Each additional day is associated with an additional 17.5 grams of mass.
The predicted mass of a Boxer puppy at birth.
The predicted mass of a Boxer puppy at birth.
Every 17.5 days is associated with an additional 480 grams of mass.
Every 17.5 days is associated with an additional 480 grams of mass.
Skip to navigation
Each additional day is associated with an additional 17.5 grams of mass.
The x-axis represents the temperature degrees Celsius and the y-axis the feet above/below sea level.
What type of data is represented in this scatterplot? (Choose 3)
(3 points)
Responses
Bivariate
Bivariate
Non Linear Relationship
Non Linear Relationship
Increasing
Increasing
Decreasing
Decreasing
Linear Relationship
Linear Relationship
Univariate
Bivariate
Non Linear Relationship
Linear Relationship
The scatter plot shows the data collected from a survey of 19 students, in which they were asked how many hours per week they study (x) and what their GPAs are (y).
Looking at the graph, which statements are TRUE?
(3 points)
Responses
The slope of the line of best fit will be positive and the y-intercept will also be positive.
The slope of the line of best fit will be positive and the y-intercept will also be positive.
We can use a deterministic interpretation to say that the student who studies 20 hours will make at least a 3.0 GPA.
We can use a deterministic interpretation to say that the student who studies 20 hours will make at least a 3.0 GPA.
It is a probabilistic interpretation to say that the more you study, the higher your GPA should be.
It is a probabilistic interpretation to say that the more you study, the higher your GPA should be.
The relationship is a positive linear relationship.
The relationship is a positive linear relationship.
Your GPA should be 0 when you study 0 hours each week.
The relationship is a positive linear relationship.
It is a probabilistic interpretation to say that the more you study, the higher your GPA should be.
The slope of the line of best fit will be positive and the y-intercept will also be positive.
A sandwich shop makes home deliveries. The average amount of time from when an order is placed until it is delivered can be modeled by the equation y=2.5x+5
, where x is the number of miles between the shop and the delivery location and y is the time in minutes. Which of these statements are correct according to the model? Select TWO that apply.(2 points)
Responses
On average, the delivery person travels 5 miles every 1 minute.
On average, the delivery person travels 5 miles every 1 minute.
On average, it takes the delivery person 5 minutes to travel 1 mile.
On average, it takes the delivery person 5 minutes to travel 1 mile.
On average, the delivery person travels 2.5 miles every 1 minute.
On average, the delivery person travels 2.5 miles every 1 minute.
The average amount of time the shop needs to prepare the food for delivery is 5 minutes.
The average amount of time the shop needs to prepare the food for delivery is 5 minutes.
The average amount of time the shop needs to prepare the food for delivery is 2.5 minutes.
The average amount of time the shop needs to prepare the food for delivery is 2.5 minutes.
On average, it takes the delivery person 2.5 minutes to travel 1 mile.
On average, it takes the delivery person 5 minutes to travel 1 mile.
On average, the delivery person travels 2.5 miles every 1 minute.
This data was taken from an unbiased study of beach chair rentals. Determine if the statements below are true or false.
(3 points)
True False
Beach chair rentals go up $100 for every 3 degrees higher in temperature
True – Beach chair rentals go up $100 for every 3 degrees higher in temperature
False – Beach chair rentals go up $100 for every 3 degrees higher in temperature
The equation for the line that best fits this data is y=1003x+100
True – The equation for the line that best fits this data is y is equal to 100 thirds x plus 100
False – The equation for the line that best fits this data is y is equal to 100 thirds x plus 100
If the temperature is around 28 degrees, then you could make about $900 in beach chair rentals
True – If the temperature is around 28 degrees, then you could make about $900 in beach chair rentals
False – If the temperature is around 28 degrees, then you could make about $900 in beach chair rentals
False - Beach chair rentals do not go up $100 for every 3 degrees higher in temperature.
False - The equation for the line that best fits this data is not y=1003x+100.
False - If the temperature is around 28 degrees, you could not make about $900 in beach chair rentals.