873Sydney+B

Question 1. MEAN MEDIAN AND MODE

mean = the average median = the middle number mode= most common

HOW TO CALCULATE:

Mean: Add up all the numbers in your data set. Then divide the sum of data by the number of pieces of data (numbers) you use. Median: The median is the middle number (you must have the numbers in numerical orded to find out the median) Mode: The number that occurs most frequently in a set of numbers. You can have more than 1 mode, and you can have no mode.

1. Find the median, mean , and mode for the following ( put them in numerical order) 11,5,6,7,6,4

4,5,6,6,7,11 4+5+6+6+7+11= 39 ÷ 6 = 6.3 Mean= 6.3 Median= 6._ Mode= 6

Question # 2 SQUARE ROOTS

Definition of a sqaure root: a square root is a number multiplied by the same number and then is equaled to a whole number Perfet Square: a perfect square is any square that has the same lenght on all sides and has no decimals.

2. FIND THE SQUARE ROOT OF 27. YOU MAY NOT USE A CALCULATOR

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Question 3. PERCENTS

definition: a percent is a equal fraction out of 100

3.Is taking 15% off a given item and then an additional 10% off the reduced price the same as taking 25% off the original price? Why or Why Not? No, because it would be 23.5 compared to 25 % off.

PROPORTION QUESTIONS/ solving with fractions and ratio tables.

4. Dwyane Wade scored 12 points in 8 minutes. If he keeps scoring at this rate, how many points will he score in a 48 minute game? 72

5. Christina practices 15 hours a week and kayla practices (1.5 hours) 90 minutes every hour, you should multiply 90 x 15 = 1350 minutes ( 22 hours and 30 minutes)