Answer:
The given data suggests that there is a positive correlation - as grade level increases, so does the expected hours of homework.
Explanation:
It is difficult to accurately predict the expected hours of homework for 5th and 8th graders based on the given data. However, we can try to make an estimate by assuming a linear correlation between grade level and hours of homework.
Using the given data, we can plot a scatter plot with grade level on the x-axis and hours of homework on the y-axis. We can then draw a line of best fit through the data points to estimate the correlation.
Assuming a linear correlation, we can use the slope-intercept form of a line to calculate the expected hours of homework for 5th and 8th graders. The equation of the line of best fit is:
y = 2.5x - 6.5
where y is the expected hours of homework per week and x is the grade level. Using this equation, we can estimate that the expected hours of homework per week for 5th graders would be:
y = 2.5(5) - 6.5 = 6 hours
And the expected hours of homework per week for 8th graders would be:
y = 2.5(8) - 6.5 = 16 hours
It is important to note that this is just an estimate based on the given data, and actual hours of homework may vary depending on the school and curriculum.
As for the correlation between grade level and hours of homework per week, the given data suggests that there is a positive correlation - as grade level increases, so does the expected hours of homework. This is likely due to the increasing complexity and workload of the curriculum as students progress through school. However, it is important for schools to ensure that the amount of homework assigned is reasonable and does not cause undue stress or negatively impact students' well-being.