Tobacco-cessation initiative wants most common number of packs smoked per week as initial reduction goal. What statistic?

Rationale

Mode is the most common number of packs smoked per week.

The mode represents the value that appears most frequently in a data set, making it the ideal statistic to identify the most common number of packs smoked per week in a tobacco-cessation initiative.

A (Interquartile range) YOUR ANSWER

The interquartile range measures the spread of the middle 50% of data points, providing insight into the variability of the data rather than identifying any specific value. This statistic is useful for understanding dispersion but does not indicate which number of packs is most commonly smoked.

B (Standard deviation) YOUR ANSWER

Standard deviation quantifies the amount of variation or dispersion in a set of values. While it gives an idea of how spread out the data points are around the mean, it does not specify the most frequently occurring value, which is essential for setting a reduction goal.

C (Mode) CORRECT

The mode is defined as the value that occurs with the highest frequency in a data set. In the context of a tobacco-cessation initiative, knowing the most common number of packs smoked per week is crucial for establishing realistic reduction targets, making it the most relevant statistic to use.

D (Mean) YOUR ANSWER

The mean, or average, is calculated by dividing the sum of all data points by the number of points. While the mean provides a central value, it can be skewed by extreme values and does not necessarily reflect the most common smoking behavior, which is better captured by the mode.

Conclusion

In tobacco-cessation initiatives, identifying the mode as the most common number of packs smoked per week is critical for setting initial reduction goals. Unlike other statistics that describe variability or averages, the mode directly highlights the prevalent behavior among smokers, making it an essential tool for effective intervention strategies.

Tobacco-cessation initiative wants most common number of packs smoked per week as initial reduction goal. What statistic?

Mode is the most common number of packs smoked per week.

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