Statistics for Manufacturing Flashcards
What is Probability?
Probability is defined as the chance of an event occuring.
what is experimental probability?
the calculation of the probability of a future event based on our
observation of past events is called experimental probability.
How is experimental probability executed?
Experimental probability is found by repeating the experiment and observing the
outcomes.
What is an outcome?
The result of a single trial of an experiment is known as outcome. Toss a coin and the
outcome will be one either ‘H’ or ‘T’.
What is an Event?
One or more outcomes of an experiment is known as event. ‘Simple event’ contains
one sample point and ‘compound event’ contains two or more sample points
What is a Sample Space?
The set all possible outcomes of a random experiment is known as sample space. In
other words, it is collection of al possible outcomes
What is the MN rule?
If the first stage can be accomplished in m ways and for each of these ways, the
second stage can be accomplished in n ways, then there are mn ways to accomplish
the experiment.
What is the Union of Events?
The union of events A and B, denoted by AhalfcircleB, is the event that
either A or B or both occur.
What is an Intersection?
The intersection of events A ANNND B, is the event that both a AND b occur
What is Conditional Probability
The probability of an event A, given that the event B has occurred, is called the
conditional probability of A, given that B has already occurred
What is empirical probability?
Relies on actual experience to determine the likelihood of outcomes.
What is subjective probability?
uses probability based on an educated guess, ex: a doctor says you have a 90% chance to live
What is variance?
The measure of inconsistency
