Basic Statistics

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What is a Population in statistics?

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A population is the entire group of individuals or instances about whom we hope to learn.

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What is a Sample in statistics?

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A sample is a subset of the population that is used to represent the entire group.

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What is Descriptive Statistics?

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Descriptive statistics summarizes and describes the characteristics of a data set, using measures such as mean, median, mode, and graphical representations.

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What is Inferential Statistics?

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Inferential statistics uses a random sample of data taken from a population to make inferences or generalizations about the population.

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What is a Bar Graph?

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A bar graph is a chart that presents categorical data with rectangular bars, where the length of each bar is proportional to the value it represents.

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What is a Circle Graph (Pie Chart)?

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A circle graph, or pie chart, is a circular statistical graphic divided into slices to illustrate numerical proportions.

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What is a Line Graph?

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A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments.

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What is a Pictograph?

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A pictograph is a graph that uses pictures or symbols to represent data, making it visually engaging.

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What is the Mean?

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The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

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What is the Median?

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The median is the middle value in a list of numbers, which separates the higher half from the lower half.