Statistics Vocabulary Quiz

Match the following

• statistical question

• a numerical count of how many times a data value occurs in a data set

• data

• a question that can be answered by collecting data that are expected to vary

• distribution

• how spread out or close together values in a data set are

• frequency

• a set of collected information . Ofen numerical information such as a list of measurements.

• variability

• a representation (plot, graph, table) that shows how often values in a data set occur

Match the following

• mode

• the middle number or the halfway point between two middle numbers in an ordered set of values

• mean

• the most frequently occurring value in a data set

• median

• the sum of a set of values divided by the number of values. (the average)

Match the following

• histogram

• a visual representation of data that uses boxes to show the distribution.

• dot plot

• a data display similar to a bar; groups data into equal-sized intervals.

• box plot

• a data display that shows as dots above a number line.

Match the following

• interquartile range

• The difference between the highest (maximum) and lowest (minimum) values in a data set.

• range

• The sum of the distances of each data point from the mean of the data set divided by the number of data points. It is always positive.

• mean absolute deviation

• the difference between the upper and lower quartile values.

Match the following

• interval

• an interval of the number line which a distribution has no data values.

• gap

• a data value that is much greater or much less than most of the other values in the data set.

• peak

• all the values between two given values, which may include one or both of the given values.

• outlier

• the shape formed when many data points are at one value, or group of values.

• cluster

• a group of data points that are close to each other.

Match the following

• symmetric

• 
• skewed right

• 
• skewed left

• 

Match the following

• lower quartile

• the middle number between the minimum and the median in an ordered set of numbers. Also called the Q1 or 1st quartile.

• median

• the middle number or the halfway point between two middle numbers, in an ordered set of data.

• upper quartile

• the middle number between the median and the maximum in an ordered set of numbers. Also called the Q3 or 3rd quartile.