Statistical Vocab

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 answer an can be used to make a prediction about a large 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 value

7,9.10,13,15,15,15
The mean is 12

Question 5

Meadian

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-nuber summary that includes the minimum, the lower quartile, the meadian,the upper quartile, and the maximum; shown graphically next to anumber 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 values greater than the meadian

Question 10

Range

Answer 10

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

Question 11

Interquartile range(IQR)

Answer 11

The diffrence 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.