Showing posts with label srtaylor. Show all posts
Showing posts with label srtaylor. Show all posts

Thursday, June 14, 2012

Probabilities

experimental probability- accually doing the trails

Theoretical probability-what you expect to happen

Spread sheet

A spread sheet organizes data in colums and rows.

Divisible

Divisible-means when a number can be divided by another number, with no remainder or decimal

it is a whole number

Transformations

Transformations

Translation-slide along a straight line

Rotation-turn around a fixed point

Reflection-mirror image

Integers

Integers

Negative numbers represent values below zero
positive numbers represent values above zero
eg.above and below ground or sea level
1+(-2)=(-1) is a addition statement
3-(-1)=4 is a subtraction statement

Mean,Meadian,Mode,Range,and Outlier

Mean-Add up all the divide by how many values there are

Median- the middle number in a set of ordered values, might be the mean of the 2 middle numbers

Mode-the value that shows up the most

Range-positive difference between largest and smallest values

Outlier-values that are too big or too small compared to the other values

Divisibility Rules

0-ends in zero
1-all numbers
2-even numbers
3-sum of the digits is 3
4-divisible by 2 twice
5-ends in 5 or 0
6-divisible by 2 and 3
8-divisible by 2 three times
9-sum of the digits is 9
10-ends in zero