The phrase "affects the likelihood" is correct and usable in written English.
You can use it when discussing how one factor influences the probability of an event occurring.
Example: "The new policy affects the likelihood of employees meeting their performance targets."
Alternatives: "influences the probability" or "impacts the chances".
Spatial position strongly affects the likelihood of tree mortality.
This early disaffection directly affects the likelihood of people to vote later in life.
Accounting for this correlation is important for phylogenetic inference because it affects the likelihood calculation.
I find little evidence that DACA affects the likelihood of attending school.
We also extend the literature by analyzing how institutional ownership affects the likelihood firms have effective blackout policies.
The report said there was no statistical evidence that the race of a defendant affects the likelihood of getting the death penalty.
Another thing the girls have in common is dark skin color, which researchers at Villanova University say affects the likelihood of being suspended.
We show how uncertainty over liability for damages affects the likelihood of the species' survival, and we conclude with a discussion of optimal compensation mechanisms.
There is no scientific consensus on the risks or advantages of vaping, including how it affects the likelihood of someone either picking up regular tobacco products or kicking the habit.
This paper uses insights from strategic management and organizational theory to suggest that organizational size may have an important impact on the extent of external learning, since it differentially affects the likelihood of learning via formal and informal mechanisms.
Using the 2009 National Household Travel Survey, I investigate whether residence in a co-ethnic neighborhood affects the likelihood that ethnic minorities will form inter-household carpools, and if so, how such effects differ across race or ethnic groups.
