Similarly, for the rules of addition, there are two to choose from.You use the rule P(A or B) = P(A) P(B) if the events are mutually exclusive.Four things make a problem statistical: the way in which you ask the question, the role and nature of the data, the particular ways in which you examine the data, and the types of interpretations you make from the investigation.Tags: How To Solve Trig ProblemsSkills In Problem SolvingJunior Research Paper TopicsFun Persuasive Essay TopicsData Structures AssignmentsHow To Write An Introduction For A Term PaperHelicopter Business PlanMelbourne University Creative WritingBenefits Of Going Green Essay
You use the rule P(A or B) = P(A) P(B) - P(A and B) when the events are not mutually exclusive.
For the complement rule, you always use the rule P(A) = 1 - P(~A).
After you analyze your data, you must interpret it in order to provide an answer -- or answers -- to the original question.
This four-step process for solving statistical problems is the foundation of all the activities in this course.
P(~A) is the probability that event A does not occur. Each equation of probability has different parts that need to be filled to solve the problem.
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For the example, you determined the keyword is "and," and the rule to use is a rule of multiplication.
Most probability questions are word problems, which require you to set up the problem and break down the information given to solve.
The process to solve the problem is rarely straightforward and takes practice to perfect.
It's important to ask a question carefully, with an understanding of the data you will use to find your answer.
Collecting data to help answer the question is an important step in the process.