The phrase "adding to the likelihood" is correct and usable in written English.
It can be used when discussing factors that increase the probability of a certain outcome or event occurring.
Example: "The recent data trends are adding to the likelihood of a successful product launch this quarter."
Alternatives: "increasing the chances" or "enhancing the probability".
Later came comments from US House speaker John Boehner backing a Syria war resolution, adding to the likelihood of Congress voting for US action.
Retiring in nine months, Mr. Miller has frustrated his former allies by refusing to anoint a Democratic successor, adding to the likelihood of another Republican victory.
Chris Williamson, of data provider Markit, said: "Summer weather helped drive a strong upturn in retail sales in July, adding to the likelihood that the economic recovery will have continued at a firm pace into the third quarter.
Except for a revised 0.1percentt increase in September, the index has not risen since March, adding to the likelihood Federal Reserve officials will cut interest rates next month.
Summer weather helped drive a strong upturn in retail sales in July, adding to the likelihood that the economic recovery will have continued at a firm pace into the third quarter.
There is concern that the new elections may bolster anti-austerity leftist parties, raising the possibility of a major split with creditor nations and adding to the likelihood of a Greek exit from the euro.
The ad hoc nature of most telecommuting programs adds to the likelihood of trouble, experts said.
It simply adds to the likelihood.
Meanwhile, the government continues to take decisions that add to the likelihood of extinction.
Appeals are pending, and the latest decision adds to the likelihood that the issue will return to the US supreme court sooner rather than later.
After Ms. Arnold's first broken hip, she had reduced feeling in one foot, which added to the likelihood that she would fall again.
