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BESC Exam 1 Chapters 1-5 Questions and Answers | Latest Update | 2024/2025 | Graded A+
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BESC Exam 1 Chapters 1-5 Questions and Answers | Latest Update | 2024/2025 | Graded A+ What is the definition of a statistic? A statistic is defined as the science of collecting, organizing, analyzing, and interpreting numerical data. What is the difference between a population and a ...

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  • November 4, 2024
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  • 2024/2025
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BESC Exam 1 Chapters 1-5 Questions
and Answers | Latest Update | 2024/2025
| Graded A+
What is the definition of a statistic?




✔✔A statistic is defined as the science of collecting, organizing, analyzing, and interpreting

numerical data.




What is the difference between a population and a sample?




✔✔A population refers to the entire group of individuals or items being studied, while a sample

is a subset of the population selected for analysis.




What are descriptive statistics?




✔✔Descriptive statistics summarize and describe the characteristics of a dataset, often using

measures such as mean, median, mode, and standard deviation.




What is the purpose of inferential statistics?
1

,✔✔Inferential statistics are used to make predictions or generalizations about a population based

on data collected from a sample.




What is a variable in statistics?




✔✔A variable is any characteristic, number, or quantity that can be measured or counted and can

vary from one individual or observation to another.




How do you calculate the mean of a dataset?




✔✔The mean is calculated by adding all the values in the dataset and dividing by the number of

values.




What is the median, and how is it found?




✔✔The median is the middle value of a dataset when the values are arranged in ascending order.

If there is an even number of values, the median is the average of the two middle values.




2

, What does the mode represent in a dataset?




✔✔The mode represents the value that appears most frequently in a dataset.




Explain what a frequency distribution is.




✔✔A frequency distribution is a summary of how often each value occurs in a dataset, typically

represented in a table or graph.




What is a histogram, and how is it different from a bar chart?




✔✔A histogram is a graphical representation of the frequency distribution of continuous data,

using bars to show the frequency of data points within specified intervals. Unlike bar charts,

histograms do not have spaces between bars.




Define the term "range" in statistics.




✔✔The range is the difference between the highest and lowest values in a dataset, providing a

measure of the spread of the data.

3

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