12.2 Measures of Central Tendency

mode

A data value that occurs most often in a data set is the measure of central tendency called the _____________.

position

If n data items are arranged in order, from smallest to largest, the data item in the middle is the value in n+1/2 ___________.

midrange

The measure of central tendency that is found by adding the lowest and highest data values and dividing the sum by 2 is called _______________.

median

The measure of central tendency that is the data item in the middle of ranked, or ordered, data is called the _____________.

false

True or False: A data set can contain more than one median, or no median at all.

false

True or False: If one or more data items are much greater than the other items, the mean, rather than the median, is more representative of the data.

true

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

false

True or False: When finding the mean, it is necessary to arrange the data items in order.

mean

∑x/n, the sum of all data items divided by the number of data items, is the measure of central tendency called the _____________.