817Janna+K

Mean**- the average of the numbers in the set of data To Find- arrange the numbers in numerical order. Add all of the numbers together and divide by the amount of numbers you added 1 2 3 4( How many numbers there are) 18 divided by 3 = 6 The mean is 6
 * __1. Measures of Central Tendancy__
 * Example:** 5+6+7+8= 18

To Find- Arrange the numbers in numerical order. If there is an odd amount of numbers then count to see which is the number in the middle. If there is an even amount of numbers then find the average of the middle numbers. 7.5 is the meadian
 * Median**- the middle number in a set of data
 * Example:** 5 6 7 8 9 10 7 and 8 are the middle numbers. 7+8=15 divided by 2= 7.5

To Find: Arrange the numbers in numerical order. Look to see how many times each number appears. If there are two sets of numbers that appear then there is **no** mode. 5,5 and 8,8 are the most common numbers. Therefore there is no mode
 * Mode**- the most common number found in a set of data
 * Example:** 5 5 6 7 8 8 9


 * Question:** Create a set of data that meets the following conditions:
 * There are 7 pieces of data
 * The range is 10
 * The mean is greater than the median

817jkanswers

The product of a number multiplied by itself.
 * __2. What is a perfect square?__**

817jkanswers

A square root is when a number can be multiplied by itself to get another number. 4 is the square root of 16 Find the square root of 45 without using a calculator. How to solve: Use fractions to solve. Use a perfect square chart and use the perfect squares of lesser(36) and more value(49) than 45. Also use square roots. 817jkanswers
 * __2. What is a square root?__**
 * Example:** 4 x 4 = 16

Is taking off 10% of a given item than an additional 15% the same thing as taking 25% off? How to solve: Use equivalent fractions to solve. put your percents on the left side and your prices on the right. Keep 100% on th bottem at all times and your total amount($50) on the bottem because that is 100% of the item. Then multiply or divide either going top to bottem or side to side. Make sure what you do on one side you do to the other. 817jkanswers
 * __3. Percent__**

If a recipe call for 6 eggs for every 5 cups of flour. How many eggs are needed for 40 cups of flour? How To use equivalent fractions: Use your information to make equivelent fractions. Keep your egg numbers all on the bottem half or left side and keep your flour numbers on the top half or right side. 817jkanswers
 * __4. Using Equivelent Fractions__**

Matt wants to rent the dvd "Racing Stripes". He is throwing a party for his birthday. He can search 15 stores in 150 minutes. He must search all 21 Block Buster stores for it. He only has 210 minutes. Will he find his dvd? Use a Ratio Table to figure it out. How to use a ratio table: Make your labels(steal words from the orignal problem). stores/ minutes Fill in the information below based upon the given info then figure out how many minutes it takes to search one store then multiply those numbers by 21. Remember- what you do on one side you must do on the other side. 817jkanswers
 * __5. Using a Ratio Table__**

[|8-17's Math Blog] [|Janna's BOB- Proportionat Reasoning] [|Janna's Growing Post] [|Janna's Scribe-Hall of Fame] [|Making a Personal Learning Network]
 * To take a look at other work I have done in term one and term two, click on the hyperlinks!!!

Use the Marking Rubrick to evaluate my work!!!**
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 * Answer with explanation || /2 || /2 || /2 || /2 || /2 ||
 * Parent Notes explaining topic || /2 || /2 || /2 || /2 || /2 ||
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 * Extra links to math blog sites || **/5** ||  ||   || **Total** || **/50** ||