Southwestern Electronics has developed a new calculator that performs a series of functions not yet performed by any other calculator. The marketing department is planning to demonstrate this calculator to a group of potential customers, but it
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Southwestern Electronics has developed a new calculator that performs a series of
not yet performed by any other calculator. The marketing department is planning to
demonstrate this calculator to a group of potential customers, but it is worried about some
initial problems, which have resulted in 4 percent of the new calculators developing
mathematical inconsistencies. The marketing VP is planning on randomly selecting a group
of calculators for this demonstration and is worried about the chances of selecting a
calculator that could start malfunctioning. He believes that whether or not a calculator
malfunctions is a Bernoulli process, and he is convinced that the
is really about 0.04. Assuming that the VP selects exactly 50 calculators to use in the
demonstration, and using the Poisson distribution as an approximation of the binomial what
is the chance of getting at least two calculators malfunctioning?
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