2matchsticks have the same length as 3 bottles tops.
how many bottle tops will have the same length as 50 matchsticks?

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