8-73Amalia+G


 * Mean:** To get the mean, you first have to sum up all data. we can also call this average.


 * Median:** To get the median, you have to find the middle number, and you must have ascending order. You add them up devided by 2, only if you have two median numbers.


 * Mode:** To get a mode is when a number that occurs most frequently in a set of number. You can have more than one mode. You can have no mode.
 * Numerical order:** You always need to have your set of data in order before you can sole any problem.

mean: 1+2+3+5+5+6+8=24 / 6 = 4 median: 5+5 over 2. So 5 + 5 10 5. So the median is 5**
 * Example: 4,3,2,2,7,6- (numerical order)
 * Mode: mode is the 5, because it is repeated twice.**


 * Square Root & Definition:** To do the square root, you need to find two easy, closet number (perfect square). Also need to count the spaces between the perfect square number and the middle. Then subtract the perfect square from the large one. The answer is the denominator.


 * Percent:** An equivalent fraction out of 100. It's a fraction or a ratio in witch the denominater 100.

why or why not.**
 * question: Is taking 15% off is a given item and then additional10% of the reduced price the same as taking 35% of the orriginal price?

1) You have a note book of 25 sheets of paper; and 5 of them are black. A page falls from your note book; what is the probability is was a black sheet?

70% of what number is 40? what percent of 90 is 50?
 * 5) What is 85% 0f 40?**
 * 20% is 75 of what number?

4) What is the square root of the following numbers. use your perfect square chart and numbers. Square root of 26, 19, 28, 17.

8) A child ran 2 blocks in 20 minutes. How long does it take the child to run 4 blocks, at the same speed?

3) Johnny owns 24 black outfits, and about 6 coloured outfits. If he chose his outfits at random, what are the chances that he will select a black outfit on any one day?**

8-73Amalia's answers