709-2011

How to find an Outlier!

Outlier- A value that is much larger or smaller than the other data value. (For short the "weird" number)
The data set may have more than 1 outlier or zero outliers.

For example:

Outliers- 1, 67, 68, 64, 65, 100
The Outliers are 1 and 100 since all the other numbers there are in the sixtys.

Here's another example for you:

Outliers- 3, 8, 4, 5, 9, 33, 5, 6
The Outlier would be 33 since all the other digits are all related by one digit.

Hope you learned!

Geometry: Circles

This picture shows you the parts of a circle
-In sets of colour:

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- The diameter is a line across the centre that touches both ends of the circle!

- The radius is the distance from the centre of the circle to it's outer edge. (Also known as "Radii"

- The circumference of the circle is it's outer shape. (Well you get the point, it's pretty much the whole circle.)

- The arc of a circle is just a part of it's circumference.

- Lastly in this picture is the sector of the circle is the part where it's all yellow, honestly 2 radius much corner a section of the circle like a slice of pizza and what's left is the sector.
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For any more questions watch this video in the following link below, Thank you!:
http://www.youtube.com/watch?v=1qSXPlDv1gQ
*Not the best video you can find*

How to find the Range

Range- The positive difference between the largest and smallest values in a data set.

Range of 4, 8, 5, 6, 9, 1, 3, 5, 8, 9

Step 1. Find the largest and smallest number which is 9 and 1
Step 2. Than get the largest digit and than the smallest digit subtracts the biggest digit. (9-1=8)

The answer is 8, so there you go! Simple and easy Hope you enjoyed!

How to do a Mean!

Well first you should know what it means.

Mean- A measure of central tendency,
The sum of a set of values divided by the number of values in the set.

Here is a solution and answer!

Mean of 6, 4, 8

1. Now add up all the numbers which makes (6+4+8=18)
2. Now divide the result by how many numbers there are (18 divided by 3 makes 6)
3. Therefor the mean is 6

Well Hoped You Learned!

How to make a perpendicular bisector.

This is how to make a perpendicular bisector

1. Open the compass to just over halfway of line segment
2. Sharp point at point A makes an arc
3. Sharp point at point B make an arc
4. With ruler join the 2 intersectims of the arc. For example the points.

Hope This Helped! A-----------o-----------B

Math: Integers

Main Definitions:

- Integers: Are sets of numbers, there opposites and zero. These numbers are whole numbers.
Example: (1,2,3,4...) (...-4,-3-2-1) <<Negative numbers and Zero

- Opposite Pairs: Have the same number, but different signs.
Example: (-6,+6) or (-5, +5)

- Zero Pair: Are 2 integers that equal zero,
Example: (+1,-1) = 0

- Oppisite Integers: (+6, -6) = 0 or 6+(-6) = 0

Here's a picture of INTEGER CHIPS:

Thank You !

PS: Picture by Me, Done on paint

Learning about mode, with question and answer!

Mode-The most frequently ocurring number in a set of data.
Or if you still don't understand for short (The number that appears the most!)

Now for a question! for example:

Mode of 3, 5, 7, 7, 9               Answer: The mode is 7 since they appear the most.

Here's a 2nd question than incase you don't get it.

Mode of 2, 2, 4, 6, 6, 8, 11     Answer: The mode is 2 and 6 (Note: There can be more than one mode!)

Here's a 3rd question to make sure you understand.

Mode of 4, 6, 9, 4, 6, 8, 23      Answer: The mode is 4 and 6.