Calculating Measures of Center

What is the second step when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data

What is the third step when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data

How do you find the Interquartile Range?

• divide the 3rd quartile by the 1st quartile

• subtract the biggest number by the smallest number

• divide the biggest number by the smallest number

• subtract the 3rd quartile by the 1st quartile

What is the outlier in this data set?

{23, 60, 30, 21, 25, 35, 29}

• 35

• 21

• 30

• 60

What is the IQR?

• 5.5

• 4

• 4.5

• 6

Find the Median of the data set

• 77

• 99

• 80

• 78.5

Find the median:
5, 6, 3, 9, 0, 4, 1, 2, 7

• 4

• 4.1

• 5

• 4.5

When finding the median, what do you do if there are two middle numbers?

• Add them together and divide by 2

• Write them both as the answer

• Give up

• Pick one

What is the mode?

• Number that occurs the most

• The Average

• The difference between the highest and lowest values

• The Number in the middle

What is the mean?

• The number that occurs the most

• The number in the middle

• The difference between the highest and lowest values

• The Average