Unit 1: Statistics Vocabulary

What does a box plot, also known as a box and whiskers plot, consist of?

• Mean, median, mode, and range

• Minimum, Q1, median, Q3, and maximum

• Standard deviation, variance, mean, and expected value

• Frequency, relative frequency, cumulative frequency, and percentage

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What is a dot plot?

• A graph that shows the frequency of each category

• A graph that shows the cumulative frequency of data

• A graph that shows each individual data point

• A graph that shows the probability distribution of a dataset

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What must be true about the bars in a histogram?

• The bars must represent frequencies of non-continuous data.

• The bars must be arranged in chronological order.

• The bars must represent cumulative frequencies.

• The bars must be of the same size.

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What does the median represent in a dataset?

• The average value of the dataset

• The middle value when the data is in order from least to greatest

• The most frequently occurring value in the dataset

• The difference between the highest and lowest values in the dataset

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What do the first and third quartiles represent in a dataset?

• The mean of the lower and upper halves of the data

• The median of the lower and upper halves of the data

• The mode of the lower and upper halves of the data

• The standard deviation of the lower and upper halves of the data

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What does IQR stand for in statistics?

• Internal Quality Review

• Interquartile Range

• International Quantitative Research

• Interval Quality Range

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What is an outlier in the context of statistical data?

• A data point that is well within the overall pattern in a distribution

• A data point that lies outside the overall pattern in a distribution

• The most frequent data point in a distribution

• The middle value of a data set

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How is the mean calculated?

• By multiplying all the numbers and taking the square root

• By adding all the numbers and dividing by the number of data points

• By subtracting the smallest number from the largest number

• By finding the data point that occurs the most

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Which of the following is a measure of spread?

• Mean

• Median

• Range

• Mode

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How is the median found in a data set?

• By finding the data point that occurs the most

• By averaging the two middle numbers in an ordered set

• By selecting the middle number in an ordered set

• By subtracting the smallest value from the largest value

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