Problem Pictures Algbra Flash! - Interactive Algebra tools in Flash The following pages all require use of a plugin for Flash 4. If your browser needs one, you can download a copy from Macromedia's website. Linear Equations Practice This Flash movie will help you solve three different types of equation. Type 1: of the form x + 4 = 9 Type 2: of the form 5x - 1 = 14 Type 3: of the form 6x + 7 = 4x + 3 All you need to do is decide how much you need to add, subtract or divide each side of the equation. Simultaneous Equation Solver Type in the coefficients of x and y, along with the constants and this movie will solve any pair of simultaneous equations that can be solved. Quadratic Equation Solver Enter the coefficients of x2, x and the constant value and this movie will solve your equation for you. Please note: At present, this movie will not give answers as complex numbers or in fractional or surd form.
Median, Mean, & Mode Topic: Math ClassBrain Visitor: For each data set, find the mean, the median, and the mode. Tell which measure you find most useful for decribing the data. Explain why. 1. 2. 3. 4. ClassBrain Response: I will work through the first problem to show you how it’s done, but after that you must use the same rules and apply them to the other three problems. Since you are trying to find the mean, median, and mode, I’ll explain what those three things are. Mean - This is the average value of a set of numbers. In the case of problem #1, your numbers are 7, 9, 5, 3, 15, 15. To find the mean you must add all of the numbers together, and divide by how many there. The mean is 9. Median - This is the number that is in the middle of your set. So, look at problem #1 and put your numbers in order from lowest to highest. That would be: 3, 5, 7, 9, 15, 15 There is an even number of numbers (6 total). The median is 8. Mode - This is the number that occurs most frequently in your set. ClassBrain, Inc.
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