841Earl+P


 * __Mean Median Mode__**
 * Definitions:**

Ex: 1+2+3+4 divided by 4= 2.5
 * Mean**: it is the adveradge of all the numbers. You can get it by adding all of the numbers up and dividing by the amount of numbers their are.

Ex.1: 1,2,3,4,5 three is the the median Ex.2: 1,2,3,4 2+3 divided by 2= 2.5
 * Median**: it is the middle number of all the numbers. If their are more than one middle number see example two to see how.

Ex.1: 1,2,3,3,4 three is the mode Ex.2: 1,2,2,3,3,4 two and three are the modes
 * Mode**: is the most used number. Their can be more than 1 mode. See example 2 to see how.


 * Questions: Put the following in numerical order and find the mean, median, and mode**

1) 7,3,4,9,9,1

2) 2,10,10,3,4,6

__**Square Roots**__

A square root is the root of a number. You multiply two identical numbers to get the answer. Ex: 5x5= 25 5 is the square root of 25 Ex: 6x6= 36 6 is the square root of 36

100
 * Questions: Find the Square root of the following numbers:**

125

__**Percents/Proportions**__

A percent is a fraction out of 100. Ex: 25/100 25 divided by 100= 0.25x100= 25% Ex: 0.30x100=30%

1) 37/100 2) 0.35 3) 12/100 4) 0.79 Is taking 15% off a given item and then adding a additional 10% of the reduced price the same as taking 25% off the original price? Why or Why not.
 * Questions Turn the following fractions and decimals in percents:**
 * Answer the following in ratio tables and x,k,y charts:**

If 3 apples cost $2. How much does 1 Apple Cost?

The police have cornered this criminal in a small 23 home community. If they have only 46 hours to find him, and they can fully search the house in 2 hours and 23 minutes, will they find him?