libghc-rvar-dev software package provides random variables, you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libghc-rvar-dev
libghc-rvar-dev is installed in your system.
Make ensure the libghc-rvar-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libghc-rvar-dev *
You will get with libghc-rvar-dev package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | Haskell |
| Package | libghc-rvar-dev |
| Version | 0.2.0.3-3 |
| Description | random variables |
| Sub Section | haskell |