Mean and Deviation Concepts

To calculate the range of a dataset

To identify the median of a dataset

To predict outcomes based on central tendency

To find the highest value in a dataset

Multiply all numbers together

Find the middle number in the sorted list

Subtract the smallest number from the largest

Add all numbers and divide by the count of numbers

225

200

206

214

6

21

13.5

19

Because negative numbers are ignored

Because they represent absolute values

Because they are calculated using only positive numbers

Because they are squared values

210

225

245

235

70

25

17.5

10

Cannot be determined

Both had the same

Girls

Boys

The dataset has more outliers

The data points are more spread out

The data points are closer to the mean

The mean is less useful

Because it means the data is skewed

Because it suggests the data is not normally distributed

Because it shows the mean does not accurately represent the data

Because it indicates a lack of data