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6. What is the formulae for Density?

  • Mass/volume
  • mass X volume

7. Exterior angles of a Polygon?

  • 360-interior angle
  • 360/number of sides
  • 180- exterior angle

8. Interior angles of a polygon?

  • 180-Exterior angle
  • 360/number of sides

9. Histograms: Frequency Density=?

  • Frequency/Group width
  • Area X Frquency