Probability chapter 15

At first I learnt about the terminology about probability, the language of probability, event, simple event, sample space, complimentary event, compound event and many more.

Chapter Contents

15:01 The Language of Probability

15:02 The probability of simple events

15:03 Complementary Events

15:04 Using Probability

Probability is the study of chance of an event happening. It is a value from 0 to 1.

Formula: probability of an event:

Event is something that happens or not happen. Simple event is only one outcome. Combined event or compound event is two or more events occurring together of one after the other. 

 Experiment is an activity with an  observable result. The result of an experiment is called outcome. Outcome has only one possibility. Sample space is the number of simple space. Complimentary event is the opposite of event. P(E’) + P(E) = 1       

Event is the opposite of complimentary event. The probability result could be in percentage, decimal or fraction (fraction should be in simplest form).         

In this unit I learnt how to make a cuboctahedron dice. I also did an experiment to prove the statement of theoretical and the actual one using tossing coin. I also play game some fun games like snake and ladder. To prove the probability of getting snake or ladder and many more. We also has done a lot of classwork about probability in chapter 15

For our last task we are given task to create a game. For my group me and Audrey, we make a game called board life that is inspired by a board game called "The Game of Life". This game is about the journey of our life like getting a house, finding a partner (soulmate), getting family, getting a job and many more. To win this game you need to get the most money and at the end of the game we need to choose one place neither a mansion or the country side.This game is very suitable for family. 

Area and Volume chapter 11

Area and volume

Chapter 11



For chapter 11 I learn about area and volume about prism and 3D . There are triangular prism, rectangular prism, parallelogram, and more. We made the sample of prism using origami paper. Then we did some classwork from 11:01, 11:04-11:05. We also make a written report about the value of Pi.

Area is the size of a surface. This are the formula of each shape:

Volume is the amount 3 dimensional space of an object occupies. For this example the volume is 4×5×10 = 200 units^3.   

A prism is a solid object with identical ends, has flat sides and the same cross section all along it's length. 
These are the example of prism and their cross section:

Triangular prism is a prism with the cross section of a triangle. The characteristic of triangular prism are the cross section of this object is a triangle and it has the same cross section all along its length. 


Rectangular prism or cuboid is a 3 dimensional object which has six faces. It has the same cross-section along a length, which makes it a prism. Example: boxes like our shoe box

A Parallelogram is a flat shape with opposite sides parallel and equal in length. The characteristic of parallelogram are has two pair of opposite sides. One side has another side that has the same measurement of length. 























Then we made a chart to measure the circumference, the diameter, radius, and the relationship between circumference and diameter. We measure 5 objects that are circular.

circle chapter 12-13

Circle

    For this unit, we learnt about circle. We learn about the introduction and all about circle. We had a activity to find the value of pi (3.14). We use 5 circular object and measure it with string and record it in a piece of A3 paper. We also need to make the report of that activity. We also made a written report about proving the area of circle, by using 3 method of circle.We have done a lot of classwork at chapter 12 until 13.  We also done an activity about art with compass, in this activity it make our skill in compass more better. 

Chapter Contents

12:01 Parts of a Circle

12:02 Circumference of a Circle

12:03 Solving problems involving circumference

12:04 Area of a Circle

13:01 Geometrical Constructions

13:02 Congruence and Transformation

13:03 Congruent Figures

13:04 Constructing Congruent Figures

Circle is a line forming a closed loop, every point on which is a fixed distance from a center point. All point has the same distance from the center point. 

Radius is the distance from the center to the edge 
Diameter  starts at one side of the circle, goes through the center and ends on the other side.
The circumference is the distance around the edge of the circle. 

Statistic unit 5 (chp 9 and 14)

             In statistic chapter 14, I learnt about mean, median, range, mode, dot plot, scatter, stem-and-leaf plot, organizing data, collecting data, interpreting data, bar graph, pie chart, line graph,pictograph and many more. First, we make a presentation about the terminology of statistic. Then, we interviewed our surrounding and then we make a report for collecting data. Using the result that we have interviewed we organize our result using bar graph, pie chart and pictograph. Then we interpret the data using mean, median and mode.

Chapter Contents

14:01 Collecting Data

14:02 Sorting Data

14:03 Analyzing Data

14:04 Grouped Data

14:05 Dot Plot and Scatter Diagram

14:06 Stem and Leaf Plots

           

             We also make a time table about our daily schedule in a week. We have done 2 classwork from 14:03, 14:05 and 14:06. Then we interviewed or search minimum 40 couple about their wedding anniversaries dates and months. Then we should make a written report and interpret the data using stem-and-leaf plot, dot plot and scatter.

Mean is the average of the numbers: a calculated "central" value of a set of numbers. 

To calculate: Just add up all the numbers, then divide by how many numbers there are.

Example: what is the mean of 2, 7 and 9?
Add the numbers: 2 + 7 + 9 = 18
Divide by how many numbers (i.e. we added 3 numbers): 18 ÷ 3 = 6
So the Mean is 6

Median is the middle number (in a sorted list of numbers). We can find median by placing or sorting the number you were been given in value order then you find the middle number.

Example: find the Median of {13, 23, 11, 16, 15, 10, 26}. 
Put them in order: {10, 11, 13, 15, 16, 23, 26}
The middle number is 15, so the median is 15.

Range is the difference between the lowest and highest values.