For quality control purposes, a company that manufactures copper sheets routinely takes samples from its production process.Since its product is often used for decorative
Purposes, one inspection check involves counting the number of imperfections or flaws
On sheets that measure 36 sq.ft.Suppose the average number of imperfections per sheet
Of this size is 3.What is the probability that a sheet of this size has no more than 2
Imperfections?
A)0.4232
B)0.2510
C)0.2240
D)0.5689
E)0.0034

Question

Quizplus · Accepted Answer

The problem involves a Poisson distribution with an average rate (λ) of 3 imperfections per sheet. The probability of having no more than 2 imperfections is the sum of the probabilities of having 0, 1, or 2 imperfections. Calculating this using the Poisson probability formula gives approximately 0.4232.

For Quality Control Purposes, a Company That Manufactures Copper Sheets