‹Revenir à la recherche

7. Measure of central tendency


Analysing
7. Measure of central tendency
1 / 15
suivant
Slide 1: Diapositive
WiskundeMiddelbare schoolvwoLeerjaar 1

Cette leçon contient 15 diapositives, avec quiz interactif et diapositives de texte.

time-iconLa durée de la leçon est: 40 min

Éléments de cette leçon


Analysing
7. Measure of central tendency

Slide 1 - Diapositive

Average
An average is a single ‘typical’ value that is used to represent a set of values.

Slide 2 - Diapositive

Types of average
There are three main types of average that can be calculated to show a typical value from a set of data:
  • Mean 
  • Median
  • Mode 

Slide 3 - Diapositive

Mean
The mean is the most commonly used average. It is found by finding the total of the values and dividing by how many values there are.

Slide 4 - Diapositive

Mean
The mean is the most commonly used average. It is found by finding the total of the values and dividing by how many values there are.

Slide 5 - Diapositive

Mean
The mean is the most commonly used average. It is found by finding the total of the values and dividing by how many values there are.

Slide 6 - Diapositive

Mean
The mean is the most commonly used average. It is found by finding the total of the values and dividing by how many values there are.

Slide 7 - Diapositive

Mean
The mean is the most commonly used average. It is found by finding the total of the values and dividing by how many values there are.

Slide 8 - Diapositive

Median
The median is an average that is found by listing the values in order and finding the middle value.

Slide 9 - Diapositive

Median
The median is an average that is found by listing the values in order and finding the middle value.

Slide 10 - Diapositive

Median
The median is an average that is found by listing the values in order and finding the middle value.

Slide 11 - Diapositive

Mode
The mode is the value that occurs most often. This average can be used for non-numerical values, eg ‘red’.

Slide 12 - Diapositive

When to use each average
Mean
Median
Mode
-The data is symmetrical (no extreme outliers).

- You want the overall "typical" value.
- Every data point is important.

- The data is skewed or has outliers.

- You want a value that divides the data in half

-You're working with categorical data (e.g., favorite color, shoe size).

-You want to know the most common value.

Slide 13 - Diapositive

Range
The range is not an average. Instead, it is used to show how varied the data is. 
Range is the difference between the highest value (max) and the lowest value.

Slide 14 - Diapositive


Slide 15 - Question ouverte

Plus de leçons comme celle-ci

2Tvwo § 2.4 Mean, mode and median

- Leçon avec 23 diapositives
WiskundeMiddelbare schoolhavo, vwoLeerjaar 2

6.1 categorizing and displaying data/measures of central tendencies

- Leçon avec 18 diapositives
WiskundeMiddelbare schoolvwoLeerjaar 3

6.1 categorizing and displaying data/measures of central tendencies

- Leçon avec 25 diapositives
WiskundeMiddelbare schoolvwoLeerjaar 3

6.1 Comparing data and outliers pt.2

- Leçon avec 18 diapositives
WiskundeMiddelbare schoolvwoLeerjaar 6

Comparing data and outliers

- Leçon avec 11 diapositives
WiskundeMiddelbare schoolvwoLeerjaar 6

Chapter 8 - Statistics

- Leçon avec 10 diapositives
WiskundeMiddelbare schoolhavoLeerjaar 3

4. Be able to interpret research findings

- Leçon avec 26 diapositives
Market researchMBOStudiejaar 2

6.2 Frequency tables and cumulative frequency

- Leçon avec 24 diapositives
WiskundeMiddelbare schoolvwoLeerjaar 6