Handles many probability distributions, calculating the probabilities or goes in reverse.
Type of Material:
Collection
Recommended Uses:
This site would be useful for self-guided study/review and individual student practice, in-class demonstrations, and for professional interest in the basics of probability distributions and its calculations.
Technical Requirements:
Javascript
Identify Major Learning Goals:
Gives the basic ideas and calculations of probability distributions.
Calculates the percentile from the lower or upper cumulative distribution function of the logarithmic normal distribution, of the logarithmic normal distribution, and more.
Calculates the two probability density functions and inner and outer cumulative distribution functions of the normal distribution and draws the chart and more
Target Student Population:
High School, College General Ed, College Lower Division, College Upper Division, Graduate School, Students in an elementary statistics and elementary probability class. Faculty members.
Prerequisite Knowledge or Skills:
Algebra, Analysis Graphs and diagrams, Elementary probability, and computer skills.
Content Quality
Rating:
Strengths:
This site presents the general notion of probability and performs the associated calculations for several probability distributions. It shows each of the steps required to compute the requested probability. The Distribution Calculator includes every distribution that is covered in the elementary statistics course.
It handles many probability distributions, calculating the probabilities or goes in reverse.
Concerns:
The calculator does not provide a complete demonstration of the concept, it does not encourage appropriate statistical practictice. and it does not summarize the concept well.
It lacks examples from everyday situations to understand how to apply the several probability distributions.
Potential Effectiveness as a Teaching Tool
Rating:
Strengths:
Students could learn a lot in a short time. This is valuable as a review for students who just want the quick highlights of elementary probability. The site is very useful for accompanying homework assignments, not just to perform the probability density functions, draw the charts, and calculate the percentile.
The calculaor demonstrates relationships between concepts as an example:
Calculates the percentile from the value of the lower or upper cumulative distribution function of the student's t-distribution,
and Calculates a table of the probability density function, or lower or upper cumulative distribution function of the uniform distribution, and draws the chart. and more
Concerns:
The calculator does not provide any formulas, and it does not help develop conceptual understanding of statistics.
It would be helpful to provide the student learning outcomes to see the probability as a tool making decision. It would also help to provide a link to more in depth materials and examples in the field of probability density functions.
Ease of Use for Both Students and Faculty
Rating:
Strengths:
The calculator is easy to use. It is visually appealing and interactive. Students will have no difficulty navigating through the collection. It generates the lower and upper percentile of a probability distribution which some are not all found in a probability distribution table.
Concerns:
The calculator does have a clear instructions, and it is not engaging students.
The theory of the distributions provided by the Distributions Calculator is too short and basic. It would help to include examples to make it more engaging.
Creative Commons:
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