Tables and Bar Graphs
How are individuals sorted into categories?
Groups with common categorical traits
Two Types of Quantitative Data?
Discrete and Continuous
The y-axis of the Ogive always goes up to...
1 or 100%
The Stem can be one digit or [...]
Multiple digits
A dot plot is most similar to what other representation of data?
Stemplot
What is an example of a group that individuals would be placed in?
Gender, color, sizes, grades, political party, etc.
least to greatest
Ogives are also referred to as...
Cumulative Relative Frequency Graphs
True or False? A key is ALWAYS required.
True
What do all of these graphs display?
They display the shape and distribution of data.
How will you see categorical data sorted on a test?
Frequency Table
How many bars are ideal on a histogram? (Discrete)
5-7 Bars
What happens to the data as the graph travels along the x-axis?
It accumulates
True or False? Stem Plots cannot be placed back-to-back to compare different groups.
False, Stem Plots can be placed back-to-back to compare different groups.
All graphs must have what? (Hint: Key is not this answer as well)
A name
What is a better way to organize a frequency table?
One-way Frequency Table
True or False? The Lower Boundary is not included, but the upper boundary always is.
False: The Lower boundary is always included, but the upper boundary is not.
The graph continues until the relative frequency is ...
100
Split stem plots show stems appearing [...] times each.
What do dot plots and stem plots have in common?
You can see the shape of the distribution.
Typically, Categorical Variables are not numbers. What are some exceptions?
Zip codes/area codes
Percentile of Value x =
If 1/18 people get 0-2 hours of sleep, what relative frequency is that?
(1/18)100 = 5.6%
If the stem plot reads
19 l 3
What is an equivalent expression?
193
How do you create a dotplot?
1. Draw a horizontal line
2. Scale the axis based on the values of the variable
3. Mark a dot above the number on the horizontal axis corresponding to each data value