The number of goldfish in a tank is 22, and the volume of the tank is 70 cubic feet. What is the density of the tank? (4 points) 0.39 goldfish per cubic foot
1.41 goldfish per cubic foot
0.31 goldfish per cubic foot
2.55 goldfish per cubic foot

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next