A ratio shows us the number of times a number contains another number. The estimated trout to be present if a random sample of 5,000 fish is collected from the lake is 1400.
A ratio shows us the number of times a number contains another number.
Given that the Piranha, Catfish, and Trout in a random sample are 120, 230, and 140, respectively. Therefore, the ratio of the Trout to the total number of fish in the random sample is,
Ratio = Number of Trout/ Number of fish = 140 / 490
Now, the estimated trout to be present if a random sample of 5,000 fish is collected from the lake is,
Number of fish in the sample = Ratio × Total number of fish
= (140 / 490) × 5000
= 1428.5714
Rounding off to nearest hundred,
= 1400
Hence, the estimated trout to be present if a random sample of 5,000 fish is collected from the lake is 1400.
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