To estimate the number of bass in the lake, you can use the proportion of bass in the random sample to the total number of fish in the sample.
First, calculate the proportion of bass in the sample:
Proportion of bass = Number of bass / Total number of fish
Proportion of bass = 60 / (60 + 70 + 20) = 60 / 150 = 0.4
Next, use this proportion to estimate the number of bass in a larger sample of 1,500 fish:
Estimated number of bass = Proportion of bass x Total number of fish in larger sample
Estimated number of bass = 0.4 x 1500 = 600
Therefore, based on the sample collected, it is estimated that there are 600 bass in the lake.
Therefore, the correct answer is:
600
The following table shows the data of a random sample of fish collected from and later released into a lake:
Type of Fish Bass Catfish Warmouth
Number of fish 60 70 20
How many bass are estimated to be present if a random sample of 1,500 fish is collected from the lake? (5 points)
130
600
750
900
1 answer