2. Let f: A → B and g: B C be functions. Prove or disprove each of the following: (a) If both f and g are one-to-one then go f is one-to-one. (b) If go f is one-to-one then f is one-to-one. (c) If go f is one-to-one then g is one-to-one. (d) If go f is one-to-one and f is onto then g is one-to-one.​ anyone here...

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