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GMAT Descriptive Statistics — practice questions

Explore 30 free Descriptive Statistics questions in GMAT Data Insights. Open each question or exercise to read its content, reference answers and available explanation.

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Descriptive Statistics questions and exercises with answers

Showing questions 1–30 of 30.

The two most widely used measures of the centre of a data set are the median and the:Read the answer and worked solution →Adding fifty weights and dividing by fifty gives the:Read the answer and worked solution →The number that separates ordered data into two equal halves is the:Read the answer and worked solution →The most frequent value in a data set is the:Read the answer and worked solution →A data set can have more than one mode as long as those values share the:Read the answer and worked solution →Numbers that separate data into quarters are called:Read the answer and worked solution →About what share of the data falls on or below the first quartile?Read the answer and worked solution →To find the quartiles, you must first find the:Read the answer and worked solution →The spread of the middle half of the data is measured by the:Read the answer and worked solution →If the first quartile is 20 and the third is 44, the interquartile range is:Read the answer and worked solution →An observation that does not fit with the rest of the data is called an:Read the answer and worked solution →A histogram where a vertical line splits it into mirror halves shows a distribution that is:Read the answer and worked solution →A histogram whose right-hand side looks chopped off compared with the left is described as:Read the answer and worked solution →A histogram whose long tail stretches out to the higher values is:Read the answer and worked solution →A quick graph that shows the exact values while revealing the pattern is a:Read the answer and worked solution →The variation of data values around the centre is captured by the:Read the answer and worked solution →A data set whose values sit closely near the mean will have a standard deviation that is:Read the answer and worked solution →For the data 4, 5, 6, 6, 6, 7, 7, 7, 7, 8, the most frequent value is:Read the answer and worked solution →For that same set of ten values, the median is the average of which two ordered values?Read the answer and worked solution →The median of that set, 4, 5, 6, 6, 6, 7, 7, 7, 7, 8, is:Read the answer and worked solution →Quartiles and percentiles are together described as the common measures of:Read the answer and worked solution →The median differs from the mean in that the median does not have to be:Read the answer and worked solution →Catch the centre measuresRead the answer and worked solution →Pop the spread measuresRead the answer and worked solution →Run the statistics gatesRead the answer and worked solution →Slice the statistics wordsRead the answer and worked solution →Centre or spreadRead the answer and worked solution →Sort the shapesRead the answer and worked solution →Type the numberRead the answer and worked solution →Statistics bingoRead the answer and worked solution →

Worked practice questions

The two most widely used measures of the centre of a data set are the median and the:

  1. Mean
  2. Mode
  3. Range
  4. Ratio
Show answer and solution

Correct answer: A. Mean

1. One is the average of all values. 2. The other is the middle value. 3. The pair is the mean and the median. _Source: OpenStax Introductory Business Statistics 2e, Chapter 2, Descriptive Statistics._

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Adding fifty weights and dividing by fifty gives the:

  1. Margin
  2. Mean
  3. Mode
  4. Median
Show answer and solution

Correct answer: B. Mean

1. Every value goes into the sum. 2. The total is divided by the count. 3. It gives the mean. _Source: OpenStax Introductory Business Statistics 2e, Chapter 2, Descriptive Statistics._

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The number that separates ordered data into two equal halves is the:

  1. Median
  2. Modal
  3. Mean
  4. Mode
Show answer and solution

Correct answer: A. Median

1. The data must first be put in order. 2. It need not be one of the observed values. 3. It is the median. _Source: OpenStax Introductory Business Statistics 2e, Chapter 2, Descriptive Statistics._

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