Data Analysis Vocabulary

 

 

 

 Data Analysis Vocabulary 

Categorical Data- Data that represents characteristics of objects or individuals in groups such as black and white, inside and outside.

Numerical Data- Data collected on numerical variables such as difference in distance a girl or boy can jump. Distance is a numerical variable and collected data is numerical.

Median- The middle of the set of data. Place all numbers in order (highest to lowest or lowest to highest) then find the number in the middle.

Mode- The number that appears the most in a set of data. This can be a little tricky. If there are two numbers that appear the most then the set has two modes. When this happens it is called bimodal more than two would be called multimodal. If all numbers appear the same amount of times then the set of data has no modes.

Mean- The average all the data. To find the mean add all the numbers together and then divide by the number of numbers.  Example, if you have 8 numbers, you would add up the 8 numbers and then divide by 8 to find the average or the mean.

Range- The difference between the lowest number and the highest number. Example the highest number in the set is 30 and the lowest number is 12 than you would subtract 12 from 30 to find the range. 30-12= 18. 18 would be the range.

Outliers- A value that lies outside most of the other values in a set of data. It is either much smaller or much larger than then the other numbers.