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30 Jun 2025, 08:19
Kudos
Bookmarks
Prob of none=1- p(migration)
=1-0.05
=0.95
=1-0.05
=0.95
Bunuel
30 Jun 2025, 08:21
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Bookmarks
Prob of all penguins migrating + prob of all penguins NOT migrating = 1
thus, 1- 0.05= 0.95= Prob of all penguins NOT migrating.
thus, 1- 0.05= 0.95= Prob of all penguins NOT migrating.
30 Jun 2025, 08:22
Kudos
Bookmarks
The answer is E.
Let 'p' be probability of each penguin completing the task and 'n' be the number of penguins in the study. We're given p^n = 0.05. The probability of none of the penguins completing the task would be (1-p)^n and since none of 'p' or 'n' are given we can't answer the question.
For people who just did 1-0.05, we could only do that if the only 2 cases possible were all penguins complete the study or none of the penguins do. But that is not the case here.
Let 'p' be probability of each penguin completing the task and 'n' be the number of penguins in the study. We're given p^n = 0.05. The probability of none of the penguins completing the task would be (1-p)^n and since none of 'p' or 'n' are given we can't answer the question.
For people who just did 1-0.05, we could only do that if the only 2 cases possible were all penguins complete the study or none of the penguins do. But that is not the case here.
Bunuel
