Agirl wants to count the steps of a moving escalator which is going up if she is going up on it she count 60 steps and she is walking down taking the same time for step then she counts 90 steps how many steps would she have to take in either direction if the escalator were standing still

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