Population – All members of the studied group
Sample – A portion of the studied group is used to represent the entire population
Random – Every member of the studied group has equal chance at selection
Census – Every member of the studied group is included
Bias – If the sample does not adequately represent the population
Error – Degree to which the results of from the sample are different from the actual results of the population
Outlier – A value that is far larger or smaller than most Continue reading “Basic Statistics – Making Inferences from a Random Sample” »
Types of Word Problems
Word Problems are common on most High School exams and College Entrance Exams. Generally, word problems can be classified into 12 types. Below are examples of each type with a complete solution.
See also – How to Study for a Math test
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Most students find math word problems difficult. Word problems are found on must High School Proficiency Exams, College Exams and a few Nursing Entrance exams like the PAX. Tackling word problems is much easier if you have a systematic approach which we outline below.
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