Statistics and Making Inferences

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What is the mean in statistics?

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

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CCSS.6.SP.B.5C

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What is the median in statistics?

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The median is the middle value in a data set when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

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CCSS.6.SP.B.5C

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What does it mean to make an inference in statistics?

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Making an inference means drawing a conclusion or making a judgment about a population based on a sample of data.

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What is a data set?

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A data set is a collection of related data points or values, often organized in a table or list.

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CCSS.6.SP.B.5A

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How do you find the minimum in a data set?

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The minimum is the smallest value in a data set.

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CCSS.6.SP.B.5A

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What is a dot plot?

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A dot plot is a simple way to display data using dots above a number line, where each dot represents one data point.

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What is the purpose of calculating the mean?

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The mean provides a measure of central tendency, giving an idea of the average value in a data set.

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What does it mean if the mean is higher than the median?

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If the mean is higher than the median, it suggests that there are some high values in the data set that are pulling the average up.

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What is a sample in statistics?

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A sample is a subset of a population used to represent the whole population in statistical analysis.

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CCSS.7.SP.A.1

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What is the range of a data set?

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The range is the difference between the highest and lowest values in a data set.

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