Question
Alexa is training for a 10K race. For each of her training runs, she recorded the distance she ran and the time she ran. She made a scatter plot of her data and drew a trend line. Use the trend line to predict how long it would take Alexa to run 4.5 miles.
- 40 minutes
- 45 minutes
- 35 minutes
- 42 minutes
The correct answer is: 45 minutes
For a distance of 4.5 miles, the trend line shows a time of 45 minutes. So, it will take Alexa about 45 minutes to run 4.5 miles.
For 1 mile alexa took 7.5 minute
for 2 miles she took 15 minutes
Similarily the trend of graph is clearly depicting the time taken for alexa to cover a distance of 4.5 mile is 45 minutes .
Related Questions to study
The slope is undefined means
Correct option is (a)
When there is increase in dependent variable without any change in independent variable the graph shows a vertical line which means the slope of the line is undefined 
The slope is undefined means
Correct option is (a)
When there is increase in dependent variable without any change in independent variable the graph shows a vertical line which means the slope of the line is undefined
The slope is zero means
Correct option is (a).
when slop of any equation is zero it means there is no change in dependent variable with change in independent variable hence the graph becomes a horizontal line
The slope is zero means
Correct option is (a).
when slop of any equation is zero it means there is no change in dependent variable with change in independent variable hence the graph becomes a horizontal line
Which association has slope -1?
Which association has slope -1?
Which association has slope 1?
Which association has slope 1?
Which figure gives perfect linear correlation?
Which figure gives perfect linear correlation?
When the value of the independent variable increases and the value of the dependent variable
Increases such type of correlation is
When the value of the independent variable increases and the value of the dependent variable
Increases such type of correlation is
When the value of the independent variable increases and the value of the dependent variable
decreases such type of correlation is
The correct option is (a).
Reason : Whenever there is decrease in dependent variable with increase in independent the graph is downward with negative slope
When the value of the independent variable increases and the value of the dependent variable
decreases such type of correlation is
The correct option is (a).
Reason : Whenever there is decrease in dependent variable with increase in independent the graph is downward with negative slope
The scatter plot shows David’s height at various ages. Choose the right answer that describe the type of association between David’s age and his height.
The corerect option is (c)
Reason :
As the height of David increases with increase in his age , the graph is going upward as both the variable are increasing so it is a case of positive association and since there is almost constant change in both the variable it is shows linear relationship also
The scatter plot shows David’s height at various ages. Choose the right answer that describe the type of association between David’s age and his height.
The corerect option is (c)
Reason :
As the height of David increases with increase in his age , the graph is going upward as both the variable are increasing so it is a case of positive association and since there is almost constant change in both the variable it is shows linear relationship also
Which image shows the strong linear association.
Which image shows the strong linear association.
What is the relation between mean and median in symmetric data?
What is the relation between mean and median in symmetric data?
How many peaks are there in bimodal data?
How many peaks are there in bimodal data?
Answer the following with the help of box plot :
What is the range of given box plot ?
Answer the following with the help of box plot :
What is the range of given box plot ?
Answer the following with the help of box plot :
What is the value of median in the box plot ?
Answer the following with the help of box plot :
What is the value of median in the box plot ?
Answer the following with the help of the figure:
Which of the figures is skewed right
Answer the following with the help of the figure:
Which of the figures is skewed right
