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Math
Statistics
Chapter 3 Statistics
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Gravity
Terms in this set (11)
3
How many types of numerical summaries are there?
Median
What is the common way to measure the center of household incomes?
Mode
What's the easiest measure of center to compute from a frequency table?
Sample Mean (x-bar)
Population Mean (mu)
Match the parameters and statistics with their notation.
Sample Mean
Population Mean
Population Variance - Sigma Squared
Population Standard Deviation - Sigma
Sample Variance - S Squared
Sample Standard Deviation - S
Match the parameters and statistics with their notation.
Population Variance
Population Standard Deviation
Sample Variance
Sample Standard Deviation
True
Using the three standard deviations is a quick way to determine the outliers.
True
Using the empirical rule with a given mean and standard deviation we can draw the shape of the distribution very accurately.
Below/Above
A negative z-score indicates that the observation is ____________ the mean, whereas a positive z-score indicates that the observation is ______________ the mean.
p-th percentile
The value that separates the bottom p% of the data from the top (-1p%) of the data.
z-score
The number of standard deviations that the observation is from the mean.
rank
The order in which the observation stands when the data set is organized in asscending order.
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