Are both sentences OK?

a rumoor etc.
- It is likely to be true.
- There's a high probability that it's true.

Question

Are both sentences OK?

a rumoor etc.
 - It is likely to be true.
 - There's a high probability that it's true.

Answer

Yes. You can also use adverbs and say it this way:
"It is likely true"
"It is probably true". ("probably" means the probability is high)

Answer

Yes.

Answer

Yes.

Answer

A 'rumor' doesn't necessarily have any relation to its probability of being factual. A 'rumor' is just information/gossip that a person has heard, usually second hand, from other people...'through the grapevine,' so to speak. It may be true or it may be not; assessing it would require assessing the credibility of who you heard it from as well as their sources.

The other sentences are both correct. Using 'high probability' is interesting; this implies that there is some quantitative, numerical basis that resulted in a probability being calculated. However, we do use it in a casual/non-scientific sense frequently; it then basically means 'likely.'

Verpassen Sie nicht die Gelegenheit, bequem von zu Hause aus eine Sprache zu lernen. Stöbern Sie in unserer Auswahl an erfahrenen Sprachlehrern und melden Sie sich jetzt zu Ihrer ersten Unterrichtsstunde an!