7th Grade Review Part 2 - Categorical & Numerical Data

The best measure of center is the...

• mean

• median

• mode

• range

If there is no outlier, the best measure of center is the...

• mean

• median

• mode

• range

If there is an outlier, the best measure of variation is the...

• Range

• IQR

• Mean

• Median

To find the mean...

• add all values together and then divide by how many values there are

• order the numbers and choose the number in the middle (if there are two, add them and divide by 2)

• choose the value that appears the most

• subtract the largest number in the data and the smallest number in the data

To find the median...

• add all values together and then divide by how many values there are

• order the numbers and choose the number in the middle (if there are two, add them and divide by 2)

• choose the value that appears the most

• subtract the largest number in the data and the smallest number in the data

To find the mode...

• add all values together and then divide by how many values there are

• order the numbers and choose the number in the middle (if there are two, add them and divide by 2)

• choose the value that appears the most

• subtract the largest number in the data and the smallest number in the data

To find the range...

• add all values together and then divide by how many values there are

• order the numbers and choose the number in the middle (if there are two, add them and divide by 2)

• choose the value that appears the most

• subtract the largest number in the data and the smallest number in the data

If there is no outlier, the best measure of variation is the...

• Range

• IQR

• Mean

• Median

When you have few numbers in the data, the best graphical representations to use are (choose 2)

• Bar Graph

• Line Plot

• Histogram

• Box Plot

• Stem & Leaf

Three words that let you know you're finding the range are...

• Variability

• Spread

• Typically

• Outlier

• Distribution