Normally Open and Normally Closed Mean That the Contacts Are____________

question 8

Multiple Choice

Normally open and normally closed mean that the contacts are____________ .

• A)subject to external forces
• B)subject to mechanical forces
• C)in a rest position
• D)held by surface tension

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Definitions:

Student's T Distribution

A probability distribution used in statistical analysis for small sample sizes, where the population variance is unknown.

Normal Distribution

A bell-shaped curve, describing the spread of a characteristic throughout a population, where most data points are around the mean and the probability of extreme values decreases as one moves away from the mean.

Population Standard Deviation

A measure of the spread of a set of values within a population, calculated as the square root of the variance.

Degrees Of Freedom

The number of independent pieces of information upon which a statistical estimate is based, minus the number of parameters estimated.