Statistics Center and Variability

occurs when observations in a data set are NOT all the same

• variability

• statistically

• historically

• reliability

-describes how spread out the data is

• variability

• interval

• frequency

• mean

-sum divided by number of addends

• mean

• median

• mode

• range

The best description of the data is ​ (a)   . ​ ​ The most appropriate measure of center is the​ (b)   . The most appropriate measure of variability is the ​ (c)   .

​

• range

• mean

• IQR

• median

• skewed right

• symmetric

• symmetric with an outlier

• skewed left

The best description of the data is ​ (a)   . ​ ​ The most appropriate measure of center is the​ (b)   . The most appropriate measure of variability is the ​ (c)   .

• range

• mean

• IQR

• median

• skewed right

• symmetric

• symmetric with an outlier

• skewed left

The best description of the data is ​ ​ (a)   . ​ ​ The most appropriate measure of center is the​ ​ (b)   . The most appropriate measure of variability is the ​ ​ (c)   .

• range

• mean

• skewed left

• median

• IQR

• skewed right

• symmetric

• symmetric with an outlier

most frequently occurring number in a data set

• mean

• median

• mode

• range

-center number of a data set

• mean

• median

• mode

• range

difference between the largest and smallest value of a data set

• mean

• median

• mode

• range

-plot of numerical data along a number line

• stem and leaf plot

• dot plot

• histogram

• box plot