Statistics Vocabulary

Median

• the middle number in an ordered set of values; if the set has an even number of values, you must find the average of the two numbers in the middle

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

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

• the sum of a set of values divided by the number of values; often called the average

What type of graph groups data into equal-size intervals

• dot plot

• line plot

• box plot

• histogram

The number that appears the most often is called the ___

• mean

• median

• mode

• range

The number found in the middle of the data set when it is listed in order is ____

• mean

• median

• mode

• range

Describes a distribution of data in which the two "halves" appear as mirror-images of one another when graphed.

• Symmetrical Data

• Skewed Data

• Uniform Data

• Approximately Symmetrical

What does the term "mean" refer to in math?

• The middle value in a data set

• The most frequently occurring number in a data set

• The sum of all numbers in a data set divided by the number of items

• The difference between the highest and lowest values in a data set

the lower extreme is

• max

• quartile

• median

• min

Describes a distribution of data that is distorted or non-symmetrical when graphed. The data appears shifted to the left or to the right.

• Approximately Symmetrical

• Uniform

• Skewed

• Symmetrical

Questions that have a variety of answers

• Basic

• Interview

• Statistical

• Mystical

What is a statistical question?

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

• a question that shows data as dots above a number line; may also be called a line plot

• a question that is much greater or much less than the other values in the data set

• a question of how many times a data value occurs in a data set