Download presentation

Presentation is loading. Please wait.

1
**Measures of Central Tendency**

Mean, Median and Mode Mean, Median, and Mode Measures of Central Tendency

2
**Mean, Median and Mode What is the mean?**

The SUM of the data, divided by the number of items in the set of data ….. commonly called “the average”.

3
**The data item that appears the “MOST”**

Mean, Median and Mode What is the mode? Mean, Median, and Mode The data item that appears the “MOST”

4
**What if the data all appear the same number of times?**

Mean, Median and Mode What if the data all appear the same number of times? 1,1,2,2,3,3,4,4 Mean, Median, and Mode

5
1,1,2,2,3,3,4,4 Mean, Median, and Mode There is NO mode

6
**Can there be more than one mode?**

1,2,2,3,4,4,5,6,7 Mean, Median, and Mode

7
**1,2,2,3,4,4,5,6,7 Yes, there are two modes. What are they? 2 and 4**

Mean, Median, and Mode 2 and 4

8
Mean, Median and Mode What is the median? Mean, Median, and Mode

9
**Reorder from least to greatest**

What is the median? The middle number in the set of data when written “in order” (first step we do) Given: 2,14,28,0,1,1 Reorder from least to greatest 0,1,1,14,28 The middle number is 1 Mean, Median, and Mode

10
**What if you have an even set of numbers?**

Given: 10, 0, 20, 30 Reorder from least to greatest 0,10, 20, 30 Add the two middle numbers together. Mean, Median, and Mode Divide by 2. What is your median? 15

11
**Mean, Median and Mode What is an outlier?**

Which will an outlier affect the most: the mean, median or mode? (Hint: Think of class test scores What is an outlier? Mean, Median, and Mode A data item that is far apart from the rest of the data items

12
**The difference between the largest and smallest data values**

Mean, Median and Mode What is the range? Mean, Median, and Mode The difference between the largest and smallest data values

13
**Mean, Median and Mode Let’s try one …**

Step 1 – Rewrite in order from least to greatest Mean, Median and Mode Let’s try one … Mean, Median, and Mode 2, 1, 0, 1, 5, 3, 4, 2, 0, 3, 1, 2

14
Mean, Median and Mode Mean Range 5 Median Mode 1 and 2 Mean, Median, and Mode 2, 1, 0, 1, 5, 3, 4, 2, 0, 3, 1, 2

15
Mean, Median and Mode Test scores in an Algebra class: 99, 85, 80, 25, 99, 100 What is the mean, median, mode and range? Mean, Median, and Mode Mean Median 92 Mode 99 Range 75

16
Mean, Median and Mode Write a paragraph about what would be your most useful indicator of central tendency in this case: You are ordering a small number of shoes for your shoe store based on the sales of sizes from last year. Write why you made your selection. Why did you not choose the other two? Mean, Median, and Mode

Similar presentations

OK

Penalty shooting competition. Each person had 10 tries at shooting a penalty. These are their scores...

Penalty shooting competition. Each person had 10 tries at shooting a penalty. These are their scores...

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on fibonacci numbers in art Ppt on modern periodic table Ppt on nickel cadmium battery Ppt on marketing strategy of coca cola in india Ppt on rural tourism in india Ppt on writing summary Ppt on machine translation post Ppt on south african culture today Ppt on financial management system Free ppt on effective communication skills