Measure of Central Tendency Histogram and Box and Whisker

How do you find the median of a data set that has two middle numbers?

• You pick the higher middle number

• You pick the lower middle number

• Add the two middle numbers and divide it by 2

• Subtract the two middle numbers and divide by 2

The mean of this data set is 17.8. What would happen to the mean if 40 was added to the data set?

• The mean would not change

• The mean would go up

• The mean would go down

Which class has the higher median?

• 1st period

• 2nd period

• They have the same median

Which class did better on the test?

• 1st period

• 2nd period

• They both performed the same

How is the data distributed in this histogram?

• Symmetrically

• Skewed Right

• Skewed Left

Measures that describe a data set by identifying the

middlemost value by a single number, usually using a mean, median or mode, are called

• Measures of Central Tendency

• Measures of Spread

• Measures of Medians

• Measures of Averages

What is the middle value in a data set that has been ordered from least to greatest?

• Mode

• Median

• Mean

• Q1

What is the maximum value in this box & whisker plot?

• 26

• 28

• 30

• 22

What is the values or numbers that occurs the most in a data set?

• Median

• Mode

• Mean

• Maximum

The average of a data set is also known as the

• Mode

• Median

• Mean

• Range