F1 Describe the Characteristics of Possible Relationships in Scatter Plots

Name ______Date ______

Quiz 8.2/8.3/8.4

F1 describe the characteristics of possible relationships in scatter plots

Outcome Met
(4) / Approaching understanding of outcome (3) / Shows initial understanding of outcome (2) / Difficulty demonstrating understanding of the outcome (1) / Outcome not met
(0)

F2/F3 sketch lines of best fit for linear and non-linear data

Outcome Met
(4) / Approaching understanding of outcome (3) / Shows initial understanding of outcome (2) / Difficulty demonstrating understanding of the outcome (1) / Outcome not met
(0)

F4 select and defend the most appropriate method of displaying data.

Outcome Met
(4) / Approaching understanding of outcome (3) / Shows initial understanding of outcome (2) / Difficulty demonstrating understanding of the outcome (1) / Outcome not met
(0)

F5 draw inferences and make predictions based upon data analysis and data displays

Outcome Met
(4) / Approaching understanding of outcome (3) / Shows initial understanding of outcome (2) / Difficulty demonstrating understanding of the outcome (1) / Outcome not met
(0)

F6 demonstrating the role of data management in society

Outcome Met
(4) / Approaching understanding of outcome (3) / Shows initial understanding of outcome (2) / Difficulty demonstrating understanding of the outcome (1) / Outcome not met
(0)

F7 evaluate arguments and interpretations that are based on data analysis

Outcome Met
(4) / Approaching understanding of outcome (3) / Shows initial understanding of outcome (2) / Difficulty demonstrating understanding of the outcome (1) / Outcome not met
(0)

8.2/8.3/8.4pre-Quiz

Name ______Date ______

1. Kelsey is training for a swimming competition. Her coach records her average times for the 100 m freestyle event for the past 7 weeks. The data is displayed in a scatterplot.

a) Describe the correlation between the week of training and time. (F1)

b) Use the graph to determine Kelsey’s time at 3.5 weeks. How many weeks will it take her to reach 48s? (F5)

c) Do you think Kelsey will always be able to swim faster each week? Why? (F5)

2. The graph represents the cell phone bills for the past year for Carlos and Rochelle.

a) For which months did Rochelle pay more than Carlos? (F5)

b) Approximately what was the total annual bill for Carlos? (F5)

c) What do you think could affect the amount of money charged for cell phone use?(F6)

d) Predict what Rochelle’s cell phone bill will be for the following January. (F5)

3. The box-and-whisker plots show the marks for three different English classes.

a)Describe the median and data range for each class. (F5)

b)What was the top mark in Class

B?(F5)

c) What percentage of students in Class C had a mark over 50%? (F5)

d) Which class had the least consistent marks? (F5)

4. The graph represents the sales amount of various minerals mined last year in Canada.

a) Does the graph favour one mineral over another? Explain.

b) Draw the same graph with the first Sales axis starting at $600 million instead of $0.

c) Using your graph from part b) compare the sales of iron and uranium.

d) Who would produce and use a graph that favours certain categories over another?

5. This line graph shows the world’s total water consumption since 1940.

a)Approximately what quantity of water was used in each of these years? (F5)

1940: ______1960: ______

b) How much water do you think will be used in 2010? (F5)

c) Do you think this trend will continue? Explain your answer. (F5) (F6)

6. The travel time and distance travelled by a train is shown.

Time (h) / Distance (km)
0 / 0
0.5 / 50
1 / 100
1.5 / 150
2 / 200

a) Describe the data using the terms independent variable, dependent variable, continuous, and discrete.(F1)

b) Which type of graph would be best to display the data? Justify your choice. (F4)

7. The table shows the winning times at a freestyle swimming competition for each distance.

Winning Time (s) / Distance (m)
24.79 / 50
54.64 / 100
117.9 / 200
247.18 / 400
505.52 / 800

a) Describe the data using the terms independent variable, dependent variable, continuous,and discrete. (F5)

b) Which type of graph would be best to display the data? Justify your choice.(F4)

c) How do the two variables seem to be related? (F5)

d) If there had been a 600-m event, what would have been the winning time? for 1000 m? (F5)

e)How accurate will your predictions be? How can you improve the accuracy of your prediction? (F5)

f)What can influence the winning times? (F6)