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What is the returned value and the state of the queue after the operation is executed? Current queue state: x a z b
Q.peek()
Childcare
The care, supervision, and nurturing of children, typically performed by someone other than the child's parents or legal guardians.
Mean
The mean is the mathematical average of a set of numbers or measurements, obtained by adding them together and dividing by the number of observations.
Estimator
A guideline or equation that approximates a characteristic of an entire population by analyzing data from a subset of it.
Point Estimate
A single value or statistic that serves as the best guess or estimate of a population parameter based on sample data.
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