The phrase "are less uncertain" is correct and usable in written English.
It can be used when comparing levels of uncertainty between two or more subjects, indicating that one is more certain than the other.
Example: "The results of the second experiment are less uncertain than those of the first, providing clearer insights."
Alternatives: "are more certain" or "are clearer".
Federal court documents for the 2003 tests are less uncertain.
However, the surface temperature data are more relevant to humans because they reflect temperatures where we live, and are less uncertain and more reliable than indirect satellite temperature estimates.
On the other hand, there is some evidence that the probability of having a severe US economic recession increases as the informational efficiency decreases, which indicates that returns from crude oil markets are less uncertain during economic downturns.
For carbon footprints, the results are less uncertain but still the 95%% confidence interval spans a factor ~2 for liquid fuels and a factor of ~3 4 for the biogas options.
It is possible that some input variables are less uncertain than others, in which case, the most uncertain input variable should provide the lower bound (with reference to the premise that output cannot be less uncertain than input to the energy model).
However, this does not necessarily mean that the economic models are less uncertain.
Dylan's prognosis was "less uncertain" than they had originally thought.
Structurally, we believe Mecom's outlook is less uncertain than the UK regional press.
But if you choose to be less uncertain, there is only one way to put that optimism to work.
California's future water supply is less uncertain with the recent announcement by developer Poseidon Resources Corporation to design and construct a desalination plant in Carlsbad, north of San Diego.
"The semiconductor business is less uncertain than other high tech businesses such as smart phones.
