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Measures of Central Tendency Mean Median Mode. Mean - Average Add and divide by number of data.

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Presentation on theme: "Measures of Central Tendency Mean Median Mode. Mean - Average Add and divide by number of data."— Presentation transcript:

1 Measures of Central Tendency Mean Median Mode

2 Mean - Average Add and divide by number of data

3 Median – middle number -Order least to greatest -Find middle number

4 Mode – MOST often number that occurs most often

5 Range - Line them up -Subtract least from greatest

6 READ

7 Order of Operations P – Parenthesis ( ) First E – Exponents Second M/D OR D/M – Multiplication & Division whichever comes from….read a book from left to right A/S OR S/A – Addition & or Subtraction whichever comes first….read a book from left to right

8 Integers Positive Gained 10 yards, +10 Earned 5 dollars, +5 Negative I loss 8 points on my test. -8 The temperature fell 7 degrees. -7

9 READ

10 Coordinate Plane Quadrant I Quadrant IV Quadrant II Quadrant III x axis y axis

11 Plotting Points (+x,+y)(+x,+y) (+x,-y)(+x,-y) (-x,+y)(-x,+y) (-x,-y)(-x,-y) y axis x axis run (x, y) jump Start at (0,0) Run before jump

12 READ

13 Proportional Relationships involve multiplication or division by a specific number, never addition or subtraction. Multiply cross products (butterfly method)

14 Solving Proportions LABELS FIRST!!!!! Find Relationship Simplify, then find relationship Bat and Ball -Multiply numbers in the bat -Divide number in the ball

15 Proportions OK NO!!!

16 Read

17 GCF LCM Vertical T-chart with factor pairs. The first factor pair is always 1 x itself. Horizontal t-chart. List multiples. For finding when an even will happen AGAIN or at the SAME TIME.

18 READ

19 Adding & Subtracting Fractions Need common denominator, Add/subtract the numerators Leave denominator alone! Simplify/reduce

20 Adding & Subtracting Decimals Line up the decimals and bring down the decimal in your answer. Check if your answer makes sense. 5.09 3.98 +3.1 - 2.8

21 Read

22 Fractions to Decimals Top dog in the house!! DIVIDE 0.6

23 Decimals to Percents DP Move the decimal two places to the right. To Convert a Percent to Decimal, move the decimal two places to the left.

24 Common Equivalents

25 Read

26 Converting UNITS Customary SystemMetric System Use Formula chart. Set up proportions with labels. KHD B DCM BASE UNITS - Meters - Liters - Grams

27 READ and USE YOUR FORMULA CHART !!

28 Take your time! Continue to bubble as you answer questions until time ends. Highlighters are in teacher’s bucket. Highlight question being ASKED!!!

29 Read Carefully Take Your Time Relax Think Positively You’ve Got This… You are smart !


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