Solved: Defective Resistors A package contains 12

Chapter 4, Problem 6

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QUESTION:

Defective Resistors A package contains 12 resistors, 3 of which are defective. If 4 are selected, find the probability of getting

a. 0 defective resistors

b. 1 defective resistor

c. 3 defective resistors

Questions & Answers

QUESTION:

Defective Resistors A package contains 12 resistors, 3 of which are defective. If 4 are selected, find the probability of getting

a. 0 defective resistors

b. 1 defective resistor

c. 3 defective resistors

ANSWER:

Step 1 of 5

Experiment: From 12 resistors ( 3 defective, 9 satisfactory), four are selected at random.

Events:

A - exactly 0 of the selected resistors are defective

B - exactly 1 of the selected resistors is defective

C - exactly 3 of the selected resistors are defective

Compute the probability of A, B and C

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