WorksheetsMath 8 EOG Review - Statistics and Probability
Total questions: 7
Worksheet time: 13mins
Susan recorded the time she ate dinner and the number of calories she consumed during dinner for six consecutive days. The results are shown in the table.
Which best describes the association between the time Susan ate dinner and the number of calories she consumed?
(inactive)
positive
negative
irrational
almost none
Mr. Jones determined that the equation y=98−516x could be used to predict his students’ unit test scores, based on the number of days, x, a student was absent during the unit. What is the meaning of the y-intercept of the function?
(inactive)
A student who was not absent during the unit should score about 98.
A student who was not absent during the unit should score about 94.5.
A student’s test score should increase by about 3.2 points for each day the student is absent.
A student’s test score should decrease by about 3.2 points for each day the
student is absent.
The value in dollars, y, of a car x years after it was purchased can be modeled by the function y = 14,000 – 875x. What is the meaning of the y-intercept of the linear model?
(active)
The initial value of the car is $14,000.
The average value of the car is $14,000.
The car’s value decreases by $875 each year after it was purchased.
The car’s value decreases by $16 each year after it was purchased.
Which equation best models the data shown in the scatterplot below?
y = 3x + 10
y = 3x + 60
y = 4x + 5
y = 4x + 35
The scatterplot shows the amount of sunlight some tomato plants received and the amount each plant grew.
What is the meaning of the slope of the trend line shown on the scatterplot?
A plant grows about 3 inches for every 2 hours of sunlight it receives.
A plant grows about 2 inches for every 3 hours of sunlight it receives.
A plant grows about 3 inches for every 1 hour of sunlight it receives.
A plant grows about 1 inch for every 3 hours of sunlight it receives.
A group of students were asked if they are in the Math Club and if they are in the Literature Club. Partial results are shown in the table.
Of the students in the Math Club, 67% (rounded) are not in the Literature Club.
•Of the students not in the Math Club, 78% (rounded) are not in the Literature Club.
What is the value of x + y?
22
24
42
66
Henry made the scatterplot shown.
The scatterplot shows the data points, and it also shows the linear model that Henry drew. Which statement best describes the linear model?
The linear model describes the data well because points are scattered above and below the line.
The linear model describes the data well because all the points are close to the line.
The linear model does not describe the data well because the line does not go through any of the points.
The linear model does not describe the data well because most of the points are located above the line.
