Demand Uncertainity Categorise the following products on the basis of their demand uncertainty (high or low). 4K Android TV Wheat flour Filter coffee Aircraft engines Demand uncertainty (high) - 1, 2; Demand uncertainty (low) - 3, 4 Demand uncertainty (high) - 1, 4; Demand uncertainty (low) - 2, 3 Demand uncertainty (high) - 1; Demand uncertainty (low) - 2, 3, 4 Demand uncertainty (high) - 2, 3; Demand uncertainty (low) - 1, 4