A Circuit That Can Change the Frequency of Oscillation with an Application

question 2

Multiple Choice

A circuit that can change the frequency of oscillation with an application of a dc voltage is sometimes called an)

• A)crystal oscillator.
• B)astable multivibrator.
• C)voltage- controlled oscillator.
• D)Hartley oscillator.

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Definitions:

Pooled Standard Deviation

A method to estimate the standard deviation across different samples or groups by combining their variances, assuming they have the same variance.

Control Limit

The upper and lower bounds on a control chart in statistical process control that signal when a process might be out of control or requires investigation.

Sample Means

The average values obtained from multiple subsets of a population.

Pooled Standard Deviation

A method used to estimate the standard deviation of several different populations when the mean of each population may differ but the true standard deviation of each population is assumed to be the same.