Graphical Techniques

Graphical Techniques

By Angela Toh

Multiple Choice

According to the graph, is there a correlation between pressure and volume?

• yes 
• no
• depends on the situation

Multiple Choice

What are graphs used for?

• To show data in an understandable way

• To keep track of things so you don't forget

• To catch the eye and look colorful

• To draw pictures on

Multiple Choice

What pressure will produce a volume of 30 mL? 

• 9.5 atm
• 19.5 atm
•  30 atm
•  40 atm

Multiple Choice

Predicting the attendance given a ticket price of $27.50 is an example of:

• Interpolation
• Extrapolation
• An outlier

Multiple Choice

To calculate the slope of a graph, you need the coordinates of one point on a linear graph.

• true

• false

Multiple Choice

Look at the graph. What does the tangent to the curve show?

• Time taken

• Concentration

• Rate

• Mass

Multiple Choice

Look at the graph. Use the tangent to the curve to work out the rate of reaction.

• 0.5

• 1

• 1.5

• 2

Multiple Choice

How would you identify an anomalous data point

• It would be the first point on the line
• It would be the last point on the line
• It would be a point not on the line
• it would be a point in the middle of the line

Multiple Choice

When a graph does NOT have any clear trends it probably means the variables are which of the following

• dependent
• independent
• related
• not related

Multiple Choice

Find the outlier for the following set of numbers: 19, 20, 61, 15, 16, 17, and 18.

• 1

• 15

• 20

• 61

Multiple Choice

What is a data table?

• Is a visual tool that uses that uses bars to compare data among categories

• Used to compare the parts of a whole

• Any display of information in tabular form, with rows and or columns named

• Is a visual tool that uses that uses lines to compare data among categories

Multiple Choice

The Independent/Manipulated Variable goes on the ___ axis

• x
• y

Multiple Choice

The Dependent/Responding Variable goes on the ___ axis

• x
• y

Multiple Choice

Independent variable is the one controlled by the experimenter ex: time, date, depth, temperature.... and is placed on the _____ axis of a graph

• z

• y

• x

• not on a graph

Multiple Choice

Dependent variable is the data resulting FROM the change made by the experimenter and is placed on the _____ axis

• z

• y

• x

• not on a graph

Multiple Choice

What is an independent variable?

• the variable that changes because another variable changes

• independent variables are only found on pie charts.

• a variable most often found on the y-axis

• the variable the experimenter changes or manipulates.

Multiple Choice

Range or scale

• Space to fit all data points within lowest to highest

• Where cows roam during the day

• What you get your weight from

• The numbers you are counting by on your graph 1's, 2's, 5;s ...

Multiple Choice

Summarizes information being represented on ANY graph

• Title

• x axis title

• y axis title

• z axis title

Multiple Choice

A ____________ shows the overall trend of all the data taken in an experiment.

• line of best fit

• slope

• position

• direction

Multiple Choice

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

Multiple Choice

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A
• B
• C
• D

Multiple Choice

Students in a group of chess teams submitted data about hours of team practice and the number of matches the team won.  The graph shows the results of the data.  Based on the linear regressions equation y = 3.14x + 3.52, if a team practices 4.5 hours per week next year, which is the best prediction of the number of chess matches a team could expect to win?  

• about 24
• about 12
• about 8
• about 18

Multiple Choice

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

Multiple Choice

Based on the trend line, about how many guests should be expected if the temperature is around 80 degrees?

• 8,300
• 7,300
• 8
• 9,300

Multiple Choice

Which statement describes the trend in the scatter plot below?

• as PDSI increases, the temperature decreases
• as PDSI increases, the temperature increases
• no correlation between PDSI and temperature
• as PDSI decreases, the temperature decreases

Multiple Select

What is wrong with this graph?

• No line of best fit

• No axis title

• No units

• No Title

• All of the above

Multiple Select

What is wrong with this graph?

• No axis title

• No units

• No line of best fit

• No title

• No legend

Multiple Choice

What is missing?

• Line of best fit

• Axis units

• Nothing

• Title

• Colour

Multiple Choice

The line of best fit is straight. If this experiment was abut adding mass to a parachute, does this trendline make sense?

• Yes, it matches the data

• Yes, the larger the mass, the lower the time to hit the ground

• No, the line should be curved