Answeeers

A) Mean Median and Mode Definitions

Mode: The number that frequently shows up the most from within a given data. There can be two modes. Median: the middle number of data in numerical order. Mean: the average number of a set of data.


 * SOLVE: 8, 4, 3, 3, 5, 7**

3 3 4 5 7 8

median: (4+5)/2= 4.5 mode: 3 mean: (3+3+4+5+7+8)/6 = 5

B)Square Roots

A square that has a whole number for all the same sides.

SOLUTION: if the square root of 36 is 6 and the square root of 49 is 7 than the square root of 45 must lie somewhere between 6 and 7. ANSWER: 6.7
 * SOLVE: what is the square root of 45?**

C)Percent


 * SOLVE:**Is taking 15% off a given item and then additional 10% off the reduced price the same as taking off 25% off the original price? Why or why not.

SOLUTION: Taking off 25% is cheaper: For example, given an item priced as $100: 25% off of a $100 item would be $75.00 after its deduction 15% off= $100.00x0.15=$15.00 Therefore, cost after 15% off = $85.00, PLUS an additional 10% off $85.00x0.10= $8.50 Therefore, $85.00-$8.50= $76.50 as the overall price after deductions Compare the $75.00 pricing (with taking 25% off $100) vs. $76.50 (taking 15% THEN 10% off)