Definitions
Calculating
Graphing
True or False
Random
100
The value that appears most often in a data set is called...
Mode
100
What is the outlier in this dataset:
90, 87, 52, 92, 100, 85
52
100
What is one graph that can be used to represent one-variable data?
Bar graph, circle graph
100
There can be no mode, one mode, or more than one mode.
True
100
What is the first thing you should do when you are given a dataset and asked to find the mean, median, mode, and range?
Organize the data in order from least to greatest (numerical order).
200
The middle value in an ordered data set is called the...
Median
200
What is the mode in this dataset:
1, 1, 3, 4, 5, 5, 7, 8, 10
1 and 5
200
What is one graph that can be used to represent two-variable data?
Scatter plot
200
The number of books students read in a month is an example of two-variable data.
False - it is an example of one-variable data.
200
If your graph does not start at zero, what do you have to include?
A break in the axis (similar to a lightning bolt).
300
What is 'range' and how is it calculated?
The difference between the highest and lowest values in a data set. It is calculated by subtracting the lowest value from the highest value.
300
Calculate the range in this dataset:
1, 5, 3, 9, 6, 8
9 - 1 = 8
300
Which relationship goes downward from left to right?
Negative relationship
300
A nonlinear relationship always forms a line.
False - a linear relationship forms a line.
300
If all values in a dataset are the same, what would the range be?
0
400
What is 'mean' and how do you calculate it?
Mean is the average of a dataset. You calculate the mean by adding up all the numbers in the dataset and dividing by the number of numbers.
400
What is the mean in the dataset:
3, 2, 9, 5, 7, 4
30 / 6 = 5
400
What variable would be placed on the x-axis if you are graphing the amount of rainfall vs. plant growth?
The amount of rainfall as it is the independent variable.
400
The median is affected by outliers.
False. The mean (average) is affected by outliers.
400
Give TWO examples of when you might calculate the mean in real life.
Average test score, temperature, time spent ___, etc.
500
What is the definition of an outlier?
A value in a data set that is much higher or much lower than the rest of the data.
500
What is the median in this dataset:
1, 3, 3, 5, 7, 9
3 + 5 = 8
8 / 2 = 4
500
What are three things that can be gathered from this graph?
- Negative, linear, strong
- As the age of the car increases, the value decreases
500
You can have more than one median.
False - you can only have one median.
500
What axis does the dependent variable get plotted on?
The y-axis.