Measures of Central Tendency

The sum of all the data items divided by the number of data items, is the measure of central tendency called the...

• mean

• median

• (n+1)/2 position

• mode

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

• mean

• median

• (n+1)/2 position

• mode

If n data items are arranged in order, from smallest to largest, the data item in the middle is the value in...

• mean

• median

• (n+1)/2 position

• mode

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

• mean

• median

• (n+1)/2 position

• mode

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

• midrange

• mode

• median

• mean

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

• True

• False

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

• True

• 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

• False

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

• True

• False