Compute a histogram of the violent crime rate (vcri00).  First compute this showing the raw

frequency of each bar.  Then compute a relative frequency histogram.  Interpret the results.

Hints:  Search in the help menu for “histogram” to find the instructions for the command.  Which

is the correct option to use for the histogram of frequencies: density, fractions, or frequency?  

Which is the correct option to use for the relative histogram:  density, fractions, or frequency?  

Try each option and decide.

题目如上 不晓得 raw frequency 和  relative frequency 如何取舍

PS  当我compute this showing th raw frequency of each bar 时候 程序出现

. histogram _all
too many variables specified
r(103);
我该怎么处理 。。。。感谢回复的朋友