A2HardingSpring15Day3­NormalDistributions.notebook
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Algebra 2
Ch.12 Notes Page 60
P60 12­7 Normal Distributions
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Good Descriptions for some distributions of Real data.
Good Approximations of many kinds of
Chance Outcomes.
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Normal Distributions show data that vary randomly from the mean. The pattern the data form is a bell­shaped curve (called a normal curve)
1 Std Dev = 68.2%
2 Std Dev = 95.4%
3 Std Dev = 99.7%
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Create the Normal Distribution Curve...
In a Group of 300 People... What number of the people should be within +/­ 1 Standard Deviation of the Mean?
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What are the % of drives less than 296 yards?
What are the % of drives less than 320 yards?
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What are the % of drives between 304 and 320 yards?
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What are the % of 14 year­old boys with cholesterol above 170?
What are the % of 14 year­old boys with cholesterol below 230?
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What % of 14­year old boys have a blood cholesterol between 110 and 170 mg/dl?
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A2HardingSpring15Day3­NormalDistributions.notebook
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HW #64
12­7
P695 #1­15,18­25
Please put your name and class period at the top of the homework. Also include the homework number.
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