Vocabulary
a sample is...
What is "part of the population"
Boxplots display information in the 5 number summary. What are the five numbers represented?
What is "Median, Q1, Q3, Maximum, and Minimum"
Gaps in a histogram are what?
What is "gaps in data"
A bar chart displays the distribution of what kind of variable?
What is "categorical variable"
If a polls asks adults "do you consider yourself democrat, republican, independent, or third party?". The possible responses are what variable?
What is "categorical variable"
The 5 W's are...
What is "Who, What, Where, When, Why, and HoW
Boxplots are used for what kind of data?
What is "quantitive data"
histograms are used for what kind of data?
What is "quantitive data"
The sum of the values in a pie chart should total what?
what is "100%"
The symbol "y-bar" means what?
what is "mean"
A variable that names categories is called...
What is "categorical variable"
The IQR describes what percent of values?
What is "the middle 50%"
What are the 3 key elements to describe distribution of a histogram?
What is "shape, center, spread"
Frequency tables organize what?
What is "counts"
The three rules of data analysis are...
What is "draw a picture, draw a picture, and draw a picture"
A variable in which the units act as numerical values is called...
Given the data set, find the IQR
1, 2, 2, 3, 6, 8, 12, 24, 43
What is "16"
If a histogram has a tail that stretches farther than the other, the histogram is said to be what?
what is "skewed"
When the distribution of one variable is the same for all categories of another we say the variables are what?
What is "independent"
The 3 variables we have mentioned so far are...
What is "identifier, categorical, and quantitate variables"
The distribution of a variable restricting the Who to consider only a smaller group of individuals is called...
What is "conditional distribution"
Given the data set, are there any outliers?
0, 1, 1, 3, 3, 4, 7, 8, 13, 23, 25, 56
What is "data value 52"
Given the data set, find the standard deviation.
1, 2, 2, 3, 6, 8, 12, 24, 43
What is "13.9"
Checking if the data are counts or percentages of individuals in categories is called what?
what is "Categorical data condition"
What is "Uniform, unimodal, bimodal, and multimodal"