NCSCOS Grade 8 Math - Topic: Statistics and Probability

Quiz by NCDPI

Mathematics
North Carolina Standard Course of Study

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7 questions
• Q1
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? (*NO CALCULATOR*)
almost none
negative
positive
irrational
60s
NC.8.SP.1
• Q2
60s
NC.8.SP.3
• Q3
60s
NC.8.SP.3
• Q4
60s
NC.8.SP.2
• Q5
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 1 inch for every 3 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.
60s
NC.8.SP.3
• Q6
60s
NC.8.SP.4
• Q7
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 does not describe the data well because the line does not go through any of the points.
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 most of the points are located above the line.
60s
NC.8.SP.2

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