Basic Concepts of Statistics
This page describes a Qedoc learning module or quiz entitled "Basic Concepts of Statistics". You can download the module from this page to put on your computer. You can also launch the module straight off the web using the launch quiz link on the right-hand side of this page. Another way to access this quiz is to install the Qedoc Quiz Player and bring up its directory of downloadable quizzes. Whichever way you choose to use it, it's free.
Useful text for preparing for this module: Mario F. Triola, Essentials of Statistics (3rd Edition).
The following is a short sample of the questions in this module and may help to better assess the level, topic and suitability of the material for your purposes. Images are omitted and the questions may not make complete sense without the context of the interactive answer activities which follow them in the module. To best preview this module, click the launch link at the top right of this page.
- ______ Data is like ordinal level, with the additional property that the difference between any two data values is meaningful. However, data at this level do not have a natural zero starting point (where none of the quantity is present) such as years and temperature in Fahrenheit.
- ______ Data is the interval level with the additional property that there is also a natural zero starting point (where zero indicates that none of the quantity is present). For values at this level, differences and ratios are both meaningful. Such as price
- In which type of sampling do we subdivide the population into at least two different subgroups so that subjects within the same subgroup share the same characteristics (such as gender or age bracket), then we draw a sample from each subgroup.
- ________ data is data that can be arranged in some order, but differences between data values either cannot be determined or are meaningless. (I.e. Course grades A, B, C, D, or F, and other ranking schemes)
- ________ is characterized by data that consist of names, labels or categories only. The data cannot be arranged in an ordering scheme (such as high to low) (i.e. Yes/no/undecided, or colors)
- In which type of sampling do we first divide the population area into sections, then randomly select some of those Sections, then finally choose all the members from those selected sections.
- The complete collection of all elements (scores, people, measurements, and so on) to be studied. The collection is complete in the sense that it includes all subjects to be studied.
- A collection of methods for planning experiments, obtaining data, and then organizing, summarizing, presenting, analyzing, interpreting, and drawing conclusions based on the data is:
- __________ are the values in the middle of the class and can be found by adding the lower class limit to the upper class limit and dividing the sum by two.
- This type of Qualitative data result when the number of possible values is either a finite number or a “countable” number. (0, 1, 2, and so on)
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