Question

two samples of fish from a pond were analyzed. the second sample was taken six months after the first sample. which are valid inferences? check all that apply. year 1 sample 1 sample 2 trout 3 5 catfish 9 9 bass 8 6 all fish 20 20 the second sample shows the same amount of each type of fish in the pond. about twice as many trout were in the pond at the time the second sample was taken. about the same number of bass were found in the two samples. fewer bass were in the pond at the time the second sample was taken. about the same number of catfish were found in both samples.

Explanation:

Step1: Analyze trout data

In sample 1, trout = 3; in sample 2, trout = 5. It's not about twice as many.

Step2: Analyze cat - fish data

In sample 1, catfish = 9; in sample 2, catfish = 9. So, about the same number of catfish were found in both samples.

Step3: Analyze bass data

In sample 1, bass = 8; in sample 2, bass = 6. Fewer bass were in the pond at the time the second sample was taken.

Step4: Analyze overall

The second sample doesn't show the same amount of each type of fish.

Answer:

• Fewer bass were in the pond at the time the second sample was taken.
• About the same number of catfish were found in both samples.