Statistics & Probability Vocabulary

What is a chance experiment?

• A) A calculated prediction of an event.

• B) A repeatable action with unknown outcomes.

• C) A study of historical events.

• D) A simulation of a real-world event.

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What is the interquartile range (IQR)?

• A) The sum of the first quartile and the third quartile.

• B) The data set divided into four equal parts.

• C) The difference between the first quartile and the third quartile.

• D) The median multiplied two.

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What does the mean absolute deviation (MAD) measure in a data set?

• A) The average distance from the median.

• B) The average distance from the mean.

• C) The difference between the highest and lowest values.

• D) The sum of all data points divided by the number of points.

What is the median of a data set?

• A) The most frequently occurring value.

• B) The average of all data points.

• C) The middle number when the data is listed in order.

• D) The difference between the highest and lowest values.

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What does probability mean?

• A) The outcomes of a chance experiment.

• B) The possible outcomes of an event.

• C) How unlikely an event is to happen.

• D) The likelihood of an event.

What is a representative sample?

• A) A sample that includes every member of the population.

• B) A sample that reflects the distribution of the population in terms of center, shape, and spread.

• C) A sample taken from a specific subgroup of the population.

• D) A sample that is taken randomly without any specific criteria.

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What is the purpose of a simulation in the context of chance experiments?

• A) To record the actual results of the experiment.

• B) To predict the exact outcome of one specific trial.

• C) To estimate the probability of a real-world event.

• D) To demonstrate the certainty of an event.

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What is the range of a data set?

• A) The average of all data points.

• B) The middle value when the data is listed in order.

• C) The most frequently occurring value.

• D) The difference between the highest and lowest values.

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What does a scatterplot primarily show?

• A) The relationship between two variables.

• B) The distribution of a single variable.

• C) The mean of the data set.

• D) The probability of an event happening.

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What is the purpose of a box plot in data analysis?

• A) To show the relationship between two variables.

• B) To display the distribution of data based on a five-number summary.

• C) To calculate the probability of an event.

• D) To determine the mean of the data set.

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