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L15.2082 - Statistics for Business and Economics (2024/2025)

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All variables that have numbers as their values are quantitative/numerical variables.

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In a plant, the frequency distribution of the hourly wage (in euros) is as follows.

In this plant,

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Given the following data set, what is the value of the median?     

xi    fi

6    30%

7    25%

8    45%

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A data set containing observations about the "the number of flaws in one metre of cloth" is:

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A survey is conducted in which a randomly selected group of high school seniors are asked about the amount of time they spend on homework each night.

The key parameter of interest most likely is:

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A corporate analysis is being conducted on the average annual profit of startups in the tech industry.

The unit of analysis for this study is:

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In a plant, the frequency distribution of the hourly wage (in euros) is as follows.

In this plant, we estimate that

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The following information is provided for a multi-product company

The most appropriate value for the average profit margin is,

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A health researcher conducts a survey in which a randomly selected group of adults over 50 years old are asked about the number of hours they engage in physical activity each week.

What is, most likely, the relevant sample statistic?

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