Statistical Representation (part 2)

Pie chart?

Line Graph?

Histogram?

- It’s similar to bar chart, Histogram display the graphical of data using bar with different height.

References:

Sir Habir, (2016), Lecturer of Cosmopolitan College in Commerce & Technology.

Statistical Representation (Part 1)

Types of Statistical Representation

1.  Pictograph

2. Bar charts, line graph, pie charts, Histograms and tables.

Pictograph?

- Its show the value of data by use pictures or symbols.

Example:

Number of red colored boxes sold by William, a shopkeeper, in six days of a week. See the pictograph to answer the questions.

      1)   Number of red boxes sold

Monday = 4

Tuesday = 2

Wednesday = 3

Thursday = 5

Friday = 8

Saturday = 1

Answer = 4 + 2 + 3 + 5 + 8 + 1

The sale during the week = 23

2)    The highest sale

            = on Friday which is 8

     3)  The lowest sale

           = on Saturday which is 1

Note: the answer is by observing the image above. 

Bar Charts?

It’s a vertical or horizontal bar that have two axis which is numerical value to represent the values of the data.

Example: (Vertical Bar chats) 

References:

Ghosh.P (2016).Pictograps.http://www.math-only-math.com/examples-of-pictographs.html

Web finance, (2016). Barcharts definition.http://www.businessdictionary.com/definition/bar-chart.html

Logarithm

Law of Logarithm

How to write Logarithm?

Example 1

Write the following Indices into Logarithm form.

References:

Miss Nadhirah.(2016). Lecturer of Cosmopolitan College Commerce & Technology.

Indices

Law of Indices 

Example 1

Calculate the following Indices:-

Reference:

Miss Nadhirah. (2016), Lecturer of Cosmopolitan College Commerce & Technology.

Statistical Data

What is statistical data?
- organization an collection of Numerical Data.

Types of Statistical Data?
1. Primary and Secondary data.
2. Qualitative and quantitative data.
3. Discrete and continuous.

Primary & Secondary data
- Primary data is data that collected from the sources or the investigator self.  
Example: The doctor give information to the nurse about the disease of patient.

- Secondary data is data that someone else has collected.
Example: The nurse tell the patient about he/her disease which the information of the patient disease is from the doctor.

Qualitative and Quantitative data.

- Qualitative data is data that deals with objects and characteristics and also descriptors which can be observing by someone but can’t be easily measured. Such as color, Texture or smells.

Example: 

the images show 6 speaker with different color which is purple, black, red, blue, white and green.

- Quantitative data is data that can be measured, such a height, length and width, it can be prices, area and volume and Temperature and humidity. There’s two types of Quantitative data; continuous and discrete

Continuous?

- data can be measured.

  example: The height of building

Discrete?

- data can be counted.

 example:  we can count the apples

Two apples

References:

Keith,G (2005). Quantitative. https://www.andrews.edu/~calkins/math/edrm611/edrm01.htm#QUANTITATIVE
wikibooks. (2016). Different types of Quantitative and Qualitative.https://en.wikibooks.org/wiki/Statistics/Different_Types_of_Data/Quantitative_and_Qualitative_Data

Permutation & Combination

Permutation?

Number of different ways that a certain number of objects can be ARRANGED in order from a large of objects

•          Order matter, an ordered list.
•         Keyword(S): arrangement(s)

Combination?

Number of different ways that a certain number of objects as a group can be SELECTED from a larger number of objects.

• Order does not matter, as unordered group/list.
• Keywords: choice, selection, election.

Note: 0! = 1. there is no zero in factorial function

MathsIsFun.(2014) combinatorics: combinations-permutations. Retrieved from https://www.mathsisfun.com/combinatorics/combinations-permutations.html

Retrieved from Sir Habir, Lecturer of Cosmopolitan College of Commerce & Technology. (2016), Permutation & combination.