TABLE 4-8 According to the Record of the Registrar's Office at a at a State

question 54

Short Answer

TABLE 4-8
According to the record of the registrar's office at a state university, 35% of the students are freshman, 25% are sophomore, 16% are junior and the rest are senior. Among the freshmen, sophomores, juniors and seniors, the portion of students who live in the dormitory are, respectively, 80%, 60%, 30% and 20%.
-Referring to Table 4-8, what is the probability that a randomly selected student is a junior or senior who lives in a dormitory?

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Definitions:

Electro-magnetic Field

A physical field produced by electrically charged objects affecting the behavior of charged objects in its vicinity.

Iron Core

A component made of iron within an electromagnetic device, such as a transformer or inductor, used to enhance magnetic flux.

Mutual Induction

The phenomenon where a change in magnetic flux in one coil induces a voltage in an adjacent coil, used in transformers and inductive components.

Inductors

Passive electrical components designed to resist changes in current, storing energy in a magnetic field when current flows through them.