816Nathanial

__**Mean Median Mode**__


 * Mean**, is the average in the set of data


 * - to find the mean, you add up all pieces of data. Then divide by the number of pieces of data.
 * Median**, is the middle of the set of numbers


 * - to find the median, you look for the middle number. if there is an even number you take the 2 middle numbers, add them together and then divide by 2.
 * Mode**, is the most common number in the set of data

Most of the time, the pieces of data should be in **numerical order**. Meaning from smallest to largest.
 * - to find the mode, you look for the number that shows up the most. There can be no mode in the P.O.D(pieces of data)

Mean :** 1+2+8+8+8+15+16=58. / 58 divided by 7 = **8.2**.
 * My question** : Find the mean, median and mode for this set of data. **1, 2, 8, 8, 8, 15, 16
 * Median :** The median is 8
 * Mode :** The mode is 8 because 8 shows up 3 times . More than any other number.


 * __Square Roots__**


 * -1. The **square root** is the answer of when the number is multiplied by itself
 * -2. The **perfect square** is a shape(square) that is all the same for each side

First of all, you have to look at a perfect square chart to find what two square roots the number fits in between. In this case, it's **4X4=(16)** and **5X5(25) .** To figure out the numerator, you subtract the smaller square root from from largest square root. In this case, **16** from **25** is **9 .** To figure out the denominator, you subtract the first square root from the number you have chosen. In this case it is **6**. The square root of 22 is 4 6/9. or 4 2/3
 * My Question :** What is the square root of 22 ?


 * __Percent__**

Is taking off 15% off a given item and then an additional 10% off the reduced price the same as taking 25% off the original price? Why or why not? 1.** a coat is worth $100 at the shoe store. 15% off of a $100 coat is $85 10% off of $85 is $76.50 No, as of this ^^. It is not the same.
 * - Example :
 * 2.** 25% off of $100 is $85.00


 * __Ratio and Proportion Questions__**

15 - $ 10.00 30 - $ 20.00
 * 1**. If 30 hotdogs cost $20.00. How much would 15 hotdogs cost ?

$20.00/2=**$10.00

2.** If running five miles took 2 hours. How long would it take to run fifteen miles ?