2024 Algebra 2 Fall Semester Review

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What is the mean in a normal distribution?

Back

The mean is the average value of a set of data, representing the center of the distribution.

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What is standard deviation?

Back

Standard deviation measures the amount of variation or dispersion in a set of values.

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How do you convert an expression in exponential form to radical form?

Back

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What is the formula for multiplying complex numbers?

Back

To multiply complex numbers, use the distributive property: (a + bi)(c + di) = ac + adi + bci + bdi^2.

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What is undercoverage bias in statistics?

Back

Undercoverage bias occurs when some members of the population are inadequately represented in the sample.

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Back

Front

What is the normal distribution curve?

Back

The normal distribution curve is a bell-shaped curve that represents the distribution of a continuous random variable.

Front

What does it mean for a value to be in the left tail of a normal distribution?

Back

Values in the left tail are those that fall below the mean, representing lower probabilities.

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How do you find the percentage of data within one standard deviation of the mean in a normal distribution?

Back

Approximately 68% of the data falls within one standard deviation of the mean.

Front

What is the significance of the z-score in statistics?

Back

The z-score indicates how many standard deviations an element is from the mean.