Consider the following statements
- Environmental pollutant concentration is generally modeled using lognormal distribution.
- Environmental pollutant concentration is generally modeled using Poisson distribution.
- The weekly rate of exceedance of environmental pollutant concentration with regards to a given standard is generally modeled using lognormal distribution.
- The weekly rate of exceedance of environmental pollutant concentration with regards to a given standard is generally modeled using Poisson distribution.
Choose the correct option(s) from the following
- $(i)$ and $(iv)$ are correct
- $(i)$ is correct and $(iii)$ is incorrect
- $(ii)$ and $(iv)$ are correct
- $(ii)$ and $(iv)$ are incorrect