Thursday, July 8, 2021

Mean/Median mode

 Mean-THE AVERAGE OF THE NUMBERS IS THE MEAN. CALCULATION IS EASY: ADD UP ALL THE NUMBERS, THEN DIVIDE BY THE NUMBER OF NUMBERS. IN OTHER WORDS, THE COUNT DIVIDED BY THE SUM.

For example, 10 + 10 + 10 + 10 = 50 50 5=10.10

Who Invented the Term "Mean"?

Quetelet (1796-1874), a Belgian statistician who is best known as the originator of l'homme moyen (the typical man), was one of the first scientists to employ the mean as a representative figure for a population

Who Was the Inventor of Mode? In 1895, English mathematician Karl Pearson (1857-1936) used the statistical idea of the mode for the first time.

Who is the inventor of Median?

The concept of the median first arose in the Talmud in the 13th century, as a way to objectively examine divergent appraisals. The hypothesis, however, did not catch on with the rest of the scientific world.

Link:Math/Mean,Median and Mode

Math/Mean, Median, and Mode (Math/Mean, Median, and Mode) (Math/Mean,

What does it imply?

It's the sum (total) of all the values in a set of data, such numbers or measurements, divided by the number of values on the list. Add up all of the values in the set to find the mean. Then divide the total by the number of values..


What exactly is Mode Math? In a data set, the mode is the number that appears the most frequently.


What is Median Math, and how does it work?


Place the numbers in value order and pick the middle number to find the Median.




Converting mm to M

 

Maths (Converting Units)


 MM                           CM                                     M                                      Km

12000mm

1200cm

12m

0.00012

5000mm

500cm

5m

0.005km

1,200,000mm

120,000cm

1,200m

1.2k

326mm

32.6cm

0.326m

0.00326km

1200mm

120cm

1.2m

0.0012km



  In Math we were converting unit's like millimetres,centimetres,metres and kilometres.In this chart here we are converting these to other units.


Circle facts and terminology

circle facts and terminology 

What is the formula for calculating the circumference of a circle?


Using radius as a formula


2r = circumference


If you use diameter=


PI = 22/7 or 3.141 Radius = 26000mm Diameter = 520000


I'm going to divide the radius in cm by 100 to convert it to M.


260 m = 26000/100


1633.62817987 = Cir 2 x PI x 260

area of shapes


how to find the area of a rectangle:


 
how to find the area of a triangle:



how to find the area in a circle:











Triangle facts

1- triangle facts

The total of a triangle's interior angles is always 180o, regardless of how the triangle is created.

Any of a triangle's sides are shorter than the total of the other two sides.

No matter how a triangle is made, it can always be broken into two right triangles.


2- types of triangles

equilateral, right isosceles, obtuse isosceles, acute isosceles, right scalene, obtuse scalene, and acute scalene.


3- Pythagoras

Who- Pythagoras was a Greek mathematician and philosopher. He probably visited the philosophers Thales and Anaximander on the island of Miletus as part of his schooling when he was around 20 years old. Later, he established his renowned school in Croton, Italy.


When- Pythagoras lived between approx. 570 and ca. 490 BCE


Where-He grew up on the Greek island of Samos, off the coast of modern-day Turkey.


What- The square of the hypotenuse of a right triangle equals the sum of the squares of the other two sides, according to a geometric theorem.


4- how does Pythagoras theorem work

Pythagoras' theorem states that "the square on the hypotenuse is equal to the sum of the squares on the other two sides" for all right-angled triangles. The hypotenuse is the longest side and usually runs in the opposite direction as the right angle.