8-73April+P

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= = = = =1. Mean, Median, Mode=

=A.) Mean=
 * Definition:** The average amount of the data set. Add all the numbrs in the data set to get the sum of all data. You then divide the sum of all data by the total amount of digits in the data set. Remember to put in numerical order.

1, 5, 4, 4, 9, 7, 10
 * Question:** What is the mean in the data set?

=B.) Mean=
 * Definition:** The median is the middle number. The data set must be in numerical order to find the median.

Data set one: 1, 3, 7, 8, 5, 9, 2
 * Question:** What is the median in the data sets?

=C.) Mode=
 * Definition:** The number in a data set that you see the most.

Data set one: 2, 4, 6, 8, 8, 10 Data set two: 1, 3, 4, 5, 6, 6 Data set three: 3, 3, 5, 7, 8, 11
 * Question:** What is the mode in the data sets?

= = =2. Perfect Squares and Square Roots=

=A.) Perfect Squares=
 * Definition:** The product of a number that is multiplied by itself.


 * Question:** Which of the following squares is a perfect square?



=B.) Square Roots=
 * Definition:** A number that when multiplied by itself equals a given number.


 * Question:** What is the square root of 48?

=3. Percents=
 * Definition:** A percent is an equivalent fraction out of 100.


 * Question:** Is taking 15% off an item, and then an additional 10% off the reduced price, the same as taking 25% off the original item price?

=4. Ratios and Proportions=

=A.) Ratios=
 * Definition:** A comparison of two numbers.


 * Example:**


 * Question:**

=B.) Proportions=
 * Definition:** A relationship between one part to another or to the whole where they are equal..


 * Question:** A child can run 15 blocks in 10 minutes. How long does it take the child to run 5 blocks, at the same speed?

=Link to all Answers:= 8-73apanswers