http://www.ck12.org Chapter 6. Normal Distribution Curves
- What would the variance have been for question 5 had the data set represented a sample instead of a small
population? - The following data was collected: 26 30 20 27 23 33 19 26 Fill in the chart
below and calculate the variance. The data represents a sample.
TABLE6.12:
Data(x) Mean(x ̄) Data−Mean(x−
x ̄)Square of Data −
Mean(x−x ̄)^2∑
- What would the variance have been for question 7 had the data set represented a small population instead of a
sample? - The following data was collected: 85 99 89 90 104 82 95 110 Fill in the chart
below and calculate the variance. The data represents a sample.
TABLE6.13:
Data(x) Mean(x ̄) Data−Mean(x−
x ̄)Square of Data −
Mean(x−x ̄)^2∑
- What would the variance have been for question 9 had the data set represented a small population instead of a
sample?