Aramit Cement and Meghna Cement have the following assets in portfolio and returns of the assets are following.

Assets	Return of Aramit Cement	Return of Meghna Cement	Probability
Beverage	-13.5%	-16.5%	22%
Steel mills	26.75%	31%	24%
Shipping lines	31%	25.5%	30%
Consumers	27%	27.5%	24%

1. Define different types of systematic risk and idiosyncratic risk with examples in the context of Bangladeshi firms to operate a business.