Constructing a frequency distribution relative frequency distribution frequency histogram relative frequency histogram
Violent Crimes
Violent crimes include murder, forcible rape, robbery, and aggravated assault. The
data below represent the violent crime rate (crimes per 100,000 population) by
state plus the District of Columbia in 2013.
449.9 1243.7 354.6 260.8 406.8 558.8 316.3
603.2 487.1 222.6 450.9 353.4 321.8 280.5
428.9 378.9 496.9 272.2 244.7 643.6 201.4
469.1 239.2 122.7 259.4 299.7 408.6
423.1 207.9 476.8 607.6 469.3 205.8
308.9 414.8 405.5 187.9 247.6 1 42.6
283.0 345.7 4 54.5 290.2 348.7 190.1
547.4 263.9 230.9 559.1 252.4 295.6
Source: Federal Bureau of Investigation
Class Frequency Relative Frequency
[122.7,282.85)
[282.85,443)
[443, 603.15)
[603.15, 763.3)
[763.3, 923.45 )
[923.45, 1083.6)
[1083.6, 1243.8)
A) If seven classes are to be formed, choose an appropriate lower class limit for
the first class and a class width.
B) Construct a frequency distribution (use the table above to help).
C) Construct a relative frequency distribution (use the table above to help).
D) Construct a frequency histogram of the data.
E) Construct a relative frequency histogram of the data.
F) Describe the shape of the distribution.
