In a certain animal population, for each of the first 3 months of life, the…
2023
In a certain animal population, for each of the first 3 months of life, the probability that an animal will die during that month is 1/10. For a group of 200 newborn members of the population, approximately how many would be expected to survive the first 3 months of life?
- A.
140
- B.
170
- C.
152
- D.
162
Attempted by 17 students.
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Correct answer: A
The probability of survival for each of the first 3 months of life is 1-1/10 = 9/10,
so of 200 newborn
200 * 9/10 * 9/10 * 9/10 ~ 146 is expected to survive.