Perform the Indicated Operations and Simplify $\left( \frac { - 2 } { 3 } \right) - ( - 9 )$

question 7

Multiple Choice

Perform the indicated operations and simplify. $\left( \frac { - 2 } { 3 } \right) - ( - 9 )$

• A) \(8 \frac { 1 } { 3 }\)
• B) \(8 \frac { 2 } { 3 }\)
• C) \(4 \frac { 2 } { 3 }\)
• D) \(4 \frac { 1 } { 2 }\)
• E) \(8 \frac { 7 } { 3 }\)

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Definitions:

Unbiased

A characteristic of an estimator that means the expected value of the estimator equals the true parameter value of the population.

Sampling Distribution

The probability distribution of a given random-sample-based statistic that provides insight into the shape, bias, and variability of the statistic.

Confidence Interval

A spectrum of numerical figures, originating from sample-derived statistics, expected to capture the value of an unascertained population parameter.

TV Households

Households with at least one operable television set, used as a demographic metric in media and advertising research.