Trend Lines and Scatter Plots
The trend line for this scatter plot goes up. Is there a correlation, and if so, is it positive or negative?
Yes, positive.
Cindy has data about the length of time it took to bake three different types of pie. To represent this data, which kind of graph should she pick?
A. Box plot C. Scatter plot
B. Histogram D. Line plot
D. Line plot (because there's only three data points)
Refer to Box Plot 1. What is the median of this data?
6
Complete the red square in Frequency Table 1.
25
This European country, much like the United States, is federal and composed of states. Only 16, though!
Germany
Refer to Image 1. Is there a correlation in this data, and if so, is it positive or negative?
Positive.
Cindy has data about the length of time it took to bake three hundred different types of pies. She's interested in knowing the statistical values, like median and interquartile range. To represent this data, which kind of graph should she pick?
A. Box plot C. Scatter plot
B. Histogram D. Line plot
A. Box plot, to reveal the statistical data.
Refer to Box Plot 1. What is the range of this data?
8
What does it mean for data to be "numerical"?
That the data is expressed in numbers, as opposed to categories. Hint: think temperature versus favorite color.
This European country is composed of four constituent kingdoms, each with their own congresses - called "parliaments."
The United Kingdom (get it?)
Refer to Image 2. Is there a correlation in this data, and if so, is it positive or negative?
None.
Which of the following types of graph is typically used when the y-axis is labeled "frequency"?
A. Pie chart B. Box plot
C. Histogram D. Line graph
C. Histogram
Refer to Box Plot 1. What is the interquartile range of this data?
5
What does it mean for data to be "bivariate"?
That the data involves two related numbers. Example: temperature versus sales of ice cream.
Japan
The trend line for this scatter plot has the following equation:
y = -0.2x + 400
Is the correlation negative or positive?
Negative.
When would one use a scatter plot?
To compare bivariate numerical data. That is, to compare two different variables which are both numbers. For example: "What is the correlation between hair length and monthly salary?"
Refer to Box Plot 1. Half of the chickens laid less than how many eggs?
6
What does it mean for data to be "univariate?"
When we're looking for the frequency of a single variable. As an example: "How many siblings does the average person have?"
Name a country which is still an absolute monarchy.
Brunei, Oman, Eswatini, Saudi Arabia, Vatican City, and the United Arab Emirates.
The trend line for this scatter plot has the following equation:
y = -0.2x + 400
Is the correlation strong or weak?
Weak. (strong if m is close to 1 or -1, weak if m is close to 0)
What is a pie chart good for?
Comparing relative percentages.
Refer to Box Plot 1. A quarter of the chickens laid more than how many eggs?
8
Mr. Smith's mom drives 4000 miles a year with a margin of error of 100 miles. What're the lowest and highest numbers of miles she might drive in a year?
3900 and 4100.
This Asian country used to control the largest single block of territory in the world under its famous leader, whose name meant "King of Kings."
Mongolia, under Genghis Khan.