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When constructing a frequency distribution... |
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the number of classes should be equal to the number of data values divided by 10 |
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Descriptive statistics consist of procedures used to.... |
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collect, summarize the information and describe the characteristics of a set of data |
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The requirement that classes in any frequency distribution must be mutually exclusive and collectively exhaustive implies that every element in the data set must fall into |
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Measures of central tendency are... |
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descriptive measures of the center of a set of data |
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Another name for the variance.. |
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the average squared error |
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Measure of shoe sizes are |
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When a distribution is "symmetrical," the smallest value of the following three measures.... |
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are all equal; median=mode=mean |
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The sum of frequencies for all classes will always equal... |
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The simple probability is also called |
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The union of two events A and B is written as: |
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(A U B), (A union B), (A or B) |
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A sampling carried out without replacement would describe a series of... |
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If two events are collectively exhaustive, the probability of their intersection is equal to ... |
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Males and Females are a pair of events that are both... |
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Definition
mutually exclusive and collectively exhaustive |
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Events A and B are independent if: |
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P( A ¦ B) is equal to P (A) |
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Term
A random experiment is a process that when performed... |
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Definition
results in one and only one of many observations |
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If two events are mutually exclusive and collectively exhaustive, the probability that one or the other event occurs is... |
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a collection of all items under consideration |
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are descriptors of a population |
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Parameters are represented by what type of symbols? |
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Two properties of parameters are: |
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________ is a subset of a population |
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Statistics are represented by... |
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Two properties for a sample are: |
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