Lesson 7 - Measures of Central Tendency

What is the median?

• The number in the middle when the numbers are in order from least to greatest.

• The difference between the largest and smallest number.

• The average

• The number that appears most often.

Tags

CCSS.7.EE.B.3

What is the mode?

• The average
• The number that appears most often.
• The largest number - the smallest number
• The number in the middle.

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

A data set can have more than one mode

• True
• False

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

When you are trying to find the median of a set of data and 2 numbers are left in the middle after putting them in order from least to greatest, what do you do?

• List both of the numbers as the median.

• Add the two numbers together and divide by 2.

• Pick the one that you want.

• Subtract the two numbers.

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The smallest number

• The largest number

• The number of items in the set

Find the mean.
90, 100, 95, 85, 60, 80

• 85
• 84
• 86
• 90

Tags

CCSS.7.NS.A.3

Find the median.
12, 5, 9, 18, 22, 25, 5

• 9
• 8
• 12
• 18

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mode in this set of numbers:

7, 14, 20, 3, 7, 14, 2, 14, 7

• 7

• 14

• 7 & 14

• no mode

What is the median of this data set?

6, 3, 4, 9, 2, 12, 12, 4

• 5

• 4

• 6

• 7

Which of the following is NOT a measure of central tendency?

• mean

• median

• mode

• range