Measure of Central Tendency

It is a single value that attempts to describe a set of data by identifying the central position within the set of data

• Measures of Central Tendency

• Correlation

• Regression

• Kortosis

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5
• 6
• 9
• 11

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode of the number of donut holes per bag described in the sample below:
{12,10,10,10,13,12,11,13,10}

• 13
• 12
• 11
• 10

A data set can have more than one _______

• Median
• Mode
• Mean
• Midrange

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is Roger's median score?

• 127
• 155
• 156
• 193

Find the mode.
7, 1, 1, 7, 1, 4, 1

• 7
• 3
• 1
• 4

The mode of a data set can be found by...

• subtracting the minimum from the maximum

• choosing the middle number

• choosing the number that occurs most

• finding the sum of the numbers and then dividing by the total amount of numbers in the data set

Find out median of the following data-set:

class interval 10-19 , 20-29 , 30-39 , 40-49 , 50-59 , 60-69

frequency : 12 19 20 21 15 13

• 39

• 38

• 37

• 30

The temperature in Michigan City on this date in the last ten years were: 68, 68, 69, 70, 72, 70, 68, 75, 55, 67. What is the mean temperature on this date over the last ten years? (Round to nearest whole number.)

• 60

• 61

• 68

• 69

It is the middle most measure that occurs in a distribution.

• Mean

• Median

• Mode