GB-32-02-001 · Histogram frequency density
In a histogram, the class 29 < x ≤ 46 has frequency 34. Calculate its frequency density to 2 decimal places.
Histograms: Frequency Density ("cow food" Triangle)
Booklet p. 72
Method
Use the f / (c.w × f.d) triangle: Frequency Density (f.d) = Frequency (f) ÷ Class Width (c.w)
Worked Example (GB-32-02-001)
Booklet p. 72:
1) Frequency density = 34 ÷ 17.
2) 2.00
2.00