10 Questions
| Total Attempts: 400

Questions and Answers

- 1.The world population in billions, every 5 years is listed in the table. Which graph shows the curve of best fit for the data
- A.
Graph A

- B.
Graph B

- C.
Graph C

- D.
Graph D

- 2.This data shows the distance and orbit time for the planets from the sun. Use a curve of best fit to estimate Neptune's distance from the sun if its orbit is 60 189 days.
- A.
4000 million km

- B.
4500 million km

- C.
5000 million km

- D.
5500 million km

- 3.Consider the distance and orbit data from the sun, shown above. For a curve of best fit, should you use a solid curve or a dashed curve? Why?
- A.
Solid curve because the variables are discrete

- B.
Solid curve because the variables are continuous

- C.
Dashed curve because the variables are discrete

- D.
Dashed curve because the variables are continuous

- 4.The scatter plot shows the number of fruit fliws over time. What is the best estimate for the number of flies halfway through day 6?
- A.
190

- B.
205

- C.
215

- D.
225

- 5.The table shows the millions of Automated Teller Machines (ATM) transactions for Piet's bank each year. Predict the number of transactions for 1997.
- A.
12500

- B.
13500

- C.
14000

- D.
14500

- 6.A herd of bison are moved to a remote ranch where they have no predators. Data on the population of the herd were collected for 8 years. Use a graph to estimate the population of the herd after 3.5 years.
- A.
115

- B.
125

- C.
130

- D.
140

- 7.This scatter plot shows a line of best fit for the weight of David's Great Dane puppy as he aged. What is the best estimate for the weight of the puppy when it was 14 months old?
- A.
51

- B.
52

- C.
54

- D.
56

- 8.The graph shows the population size for groundhogs in a 1-square mile are over 30 generations. What does the section marked B signify?
- A.
The rapid growth of the population

- B.
The rapid decline of the population

- C.
The death of most of teh population

- D.
The stabilization of the population

- 9.This scatter plot shows the heart rate of a chicken egg at various temperatures. Wasim said the curve of best fit should be solid because the data are discrete, but Nadine said it should be dashed because the data are continuous. Who is correct?
- A.
Wassim only

- B.
Nadine Only

- C.
Both Wassim and Nadine

- D.
Neither Wassim nor Nadine

- 10.Bill sketched the scatter plot of the annual number of deaths per 100,000 women due to lung cancer. He then drew a line and a curve of best fit and used each to predict the number of deaths in 2000. Which prediction do you think is more reliable?
- A.
Line of best fit because it is more reliable when extrapolating

- B.
Curve of best fit because it is more reliable when interpolating

- C.
Neither because the question is out of the range of the data

- D.
Curve of best fit because it aligns with the data more closely

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