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Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
Standard deviation lesson
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Standard deviation lesson

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  • 1. Entry Activity – Calculate the mean from the frequency table below Height Frequency (cm)0 ≤ h < 10 510 ≤ h < 20 620 ≤ h < 30 1030 ≤ h < 40 2 ∑
  • 2. Entry Activity – Calculate the mean from the frequency table below Height Frequency Mid-point F x MP (cm)0 ≤ h < 10 5 5 2510 ≤ h < 20 6 15 9020 ≤ h < 30 10 25 25030 ≤ h < 40 2 35 70 ∑ 23 435 ∑ (Frequency x Mid-point) ÷ ∑frequency = 435 ÷23 = 18.913034 = 18.9 to 1 d.p.
  • 3. Today I will learn to calculate the standard deviation from a: set of data frequency table grouped frequency tableKey WordsMeanStandard deviationDifference
  • 4. The normal curve
  • 5. Formulas you need to knowCalculate the standard deviation for the data below: 6, 7, 8, 11, 13, 15
  • 6. Show me how you feel about what we have just done   
  • 7. Today I will learn to calculate the standard deviation from a: set of data frequency table grouped frequency tableKey WordsMeanStandard deviationDifference
  • 8. Formulas you need to knowCalculate the standard deviation for the data below: Shoe size 4 5 6 7 8 Frequency 3 6 9 3 1
  • 9. Show me how you feel about what we have just done   
  • 10. Today I will learn to calculate the standard deviation from a: set of data frequency table grouped frequency tableKey WordsMeanStandard deviationDifference
  • 11. Formulas you need to knowCalculate the standard deviation for the data below:Weight 0 ≤ w < 50 50 ≤ w < 100 100 ≤ w < 150 150 ≤ w < 200 200 ≤ w < 250Frequency 6 5 4 3 6
  • 12. Show me how you feel about what we have just done   
  • 13. Today I will learn to calculate the standard deviation from a: set of data frequency table grouped frequency tableKey WordsMeanStandard deviationDifference
  • 14. Work for today1) Calculate the standard deviation for the data below:10, 11, 14, 20, 35, 902) Calculate the standard deviation for the data in the tablebelow:Detentions 0 1 2 3Frequency 50 14 6 33) Calculate the standard deviation for the data in the tablebelow: Height 0 ≤ h < 500 500 ≤ h < 1000 ≤ h< 1500 ≤ h < (cm) 1000 1500 2000Frequency 6 5 8 4
  • 15. Show me how you feel about what we have just done   
  • 16. Today I will learn to calculate the standard deviation from a: set of data frequency table grouped frequency tableKey WordsMeanStandard deviationDifference

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