Maths

In this lesson the class look at finding minimum spanning trees from a matrix. In previous lessons the students have been introduced to finding minimum spanning trees using Kruskal's algorithm and Prim’s algorithm. Students apply these network algorithms to find the smallest way in which a network can be connected.

This program discusses binomial distribution and the criteria for it, and describes a simple way to calculate its mean and standard deviation. An additional feature describes the quincunx, a randomizing device at the Boston Museum of Science, and explains how it represents the binomial distribution.

This program presents a detailed case study of statistics at work. Operating in a real-world setting, the program traces the practice of statistics planning the data collection, collecting and picturing the data, drawing inferences from the data, and deciding how confident we can be about our conclusions. Students will begin…

This program lays out the parts of the confidence interval and gives an example of how it is used to measure the accuracy of long-term mean blood pressure. An example from politics and population surveys shows how margin of error and confidence levels are interpreted. The program also explains the…

This program examines the difference between mean and median, explains the use of quartiles to describe a distribution, and looks to the use of boxplots and the five-number summary for comparing and describing data. An illustrative example shows how a city government used statistical methods to correct inequity between men's…

Statistics can be used to evaluate anecdotal evidence. This program distinguishes between observational studies and experiments and reviews basic principles of design including comparison, randomization, and replication. Case material from the Physicians Health Study on heart disease demonstrates the advantages of a double-blind experiment.