Central Measures

The Mean, Median, Mode, and Range are also known as?

• Central Tendency Measures

• Middle values

• Center values

• Tendency of the middle

The mean of the data set can be found by...

• finding the sum of the numbers and then dividing by the total amount of numbers in the data set

• subtracting the minimum from the maximum

• choosing the middle number

• choosing the number that occurs most

What is the mode of the following data set...

4 , 8 , 5 , 17 , 5 , 4 , 9 , 5 , 6 , 82

• 4

• 9

• 6

• 5

If you score 76, 85, 97, and 83 on your math tests for the unit, what would your median score be?

• 84

• 90

• 85

• 88

Match the following vocabulary with the definitions

• Mean

• the difference between the largest and smallest values in a data set

• Mode

• the average of values, sum of all values divided by how many values

• Median

• the most frequently occurring value(s)

• Range

• the middle value, when the data is ordered from least to greatest

The table lists five counties with the largest area in Texas. Which measure of center/variation best represents the average size of these counties?

• mean

• IQR

• mode

• range

What is the median of the following numbers? 1, 2, 2, 8, 9, 20

• 7

• Median

• 20

• Mode

• 5

• Mean

• 2

• Outlier

• 19

• Range

What is the MEDIAN of this data

Mathematical Equivalence

ON

The frequency table shows the gas mileages of several vehicles. The data would be ​ (a)   so the best measure of center would be the ​ (b)   and the best measure of variation would be the ​ (c)   ​ ​

• Skewed Right

• median

• Interquartile Range

• Skewed Left

• Symmetrical

• Mean

• Mean Absolute Deviation

What is the mode?

• The middle number in an ordered set of data.

• The difference between the greatest and least amount in the data set

• The value that occurs the most often in a data set

• The sum of all the numbers in a data set divided by the size