Which of the following probabilities could describe an event that is likely but

Question

Which of the following probabilities could describe an event that is likely but not certain?

0.2

0.5

0.8

1

I thought the answer is 0.8 but I just want to confirm.

***It is known that 4% of children carry a certain virus, but a leading health researcher suspects that the percentage is actually higher. Which of the following provides the most convincing evidence to support the researcher’s suspicion?

Out of 20 randomly chosen children, 1 child carries the virus.

Out of 60 randomly chosen children, 3 children carry the virus.

Out of 5,000 randomly chosen children, 250 children carry the virus.

Out of 5,000 randomly chosen children, 210 children carry the virus.

Explanation / Answer

Q1.
0.8, it is more than 0.5, so event that is likely but not certain

Q2.
Out of 5,000 randomly chosen children, 250 children carry the virus.
250/5000 = 0.05, 5% of children carry a certain virus, but a leading health researcher
suspects that the percentage is actually higher

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