Measures of Central Tendency Spr 23

When finding the mode, it is necessary to arrange the data items in order.

• True

• False

Numbers representing what is average or typical about a data set are called measures of central tendency.

• True

• False

Which of the following is not a measure of central tendency?

• range

• median

• mode

• mean(average)

The mean is always a number in the set of data, you use to find it.

• true

• false

A "normal" distribution is symmetric about the middle

• true

• false

An outlier is a data point that is:

• In the middle of the data set

• Always the the smallest value

• Always the largest value

• Either a lot larger or a lot smaller than the other values in the data set

Measures of center are useful because

• they are always correct

• they provide a single value that identifies the center of a distribution

• they show the largest values in a data set

• they help to organize your data

A single data set can have more than one median

• true

• false

In order to find the median the data has to be

• numerical and put in order from least to greatest

• categorical and put in order from lowest to highest frequency

• numerical and in any order

• categorical and in any order

The ______________ can be found by subtracting the lower extreme from the upper extreme.

• Range

• Median

• Mean

• Rate