Math Vocabulary

Question 1

Line plot

Answer 1

A graph that uses Xs above a number line to show data; line plots are useful for showing how data is grouped

Question 2

Statistical Question

Answer 2

a question that can have a variety of answers and can be used to make a prediction about a larger group

Question 3

Distribution

Answer 3

shows how spread out or how clustered data values are

Question 4

Mean

Answer 4

the sum of all the values divided by the number of values
7,9,10,13,15,15,15
The mean is 12

Question 5

Median

Answer 5

the middle number in a data set when all the values are listed from least to greatest
7,9,10,13,15,15,15
the median is 13

Question 6

Mode

Answer 6

The number that appears most often in a data set
7,9,10,13,15,15,15
the mode is 15

Question 7

Box plot

Answer 7

a five-number summary that includes the minimum, the lower quartile, the median, the iupper quartile, and the maximum; show graphically next to a number line

Question 8

Lower quartile

Answer 8

the middle number of all values less than the median

Question 9

Upper quartile

Answer 9

the middle number of all numbers greater than the median

Question 10

Range

Answer 10

the difference between the greatest and the least values in a data set

Question 11

Interquartile range (IQR)

Answer 11

the difference between the upper quartile and lower quartile

Question 12

Outlier

Answer 12

a data point far away from the other data points; it doesn’t quite fit with the rest of the data points.