instruction:
In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
question:
Frequentist probability or frequentism is an interpretation of probability ; it defines an event 's probability as the limit of its relative frequency in a large number of trials .
answer:
Frequency probability or Frequentism is one of the interpretations of probability theory .

question:
Juggling is a physical skill , performed by a juggler , involving the manipulation of objects for recreation , entertainment , art or sport .
answer:
Juggling can be for entertainment , art or sport .

question:
As High Commissioner , Guterres headed one of the world 's largest humanitarian organizations , one which at the end of his term had more than 10,000 staff working in 126 countries providing protection and assistance to over 60 million refugees , returnees , internally displaced people and stateless persons .
answer:
As High Commissioner , Guterres had more than 10,000 staff working in 126 countries providing protection and helping over 60 million refugees , returnees , internally displaced people and stateless persons .