According to a survey of college students, the use of social media varies widely according to age. Based on the survey, what is
the approximate probability that a non-social media user is an older student aged 282828 and up?
2 answers:
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Solution:
We are given:
Number of male fishes surveyed by Elena in a river = 350
Number of male fishes with eggs growing inside them = 150
Therefore the number of male fishes without eggs = 350 - 150 = 200
Now the ratio of male fish with egg cells to male fish without egg cells in the river is:
Therefore, the ratio of male fish with egg cells to male fish without egg cells in the river is