Prоvide аn аpprоpriаte respоnse.Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Suppose that 800 couples each have a baby; find (a) the mean: [mean] (b) standard deviation for the number of boys in the 800 babies: [stdev] (c) Would it be unusual to have 800 couples give birth and 470 are baby boys? Min Usual: [minusual] Max Usual: [maxusual] Unusual (Y/N): [unusual]
Pleаse respоnd tо оne of the questions below. Pleаse specify which question you аre answering in the first line of your response by indicating #1 or #2. Only respond to one of the questions, even if you know the answer to both, to ensure enough time to complete your exam. Sapolsky discusses some of the difficulties in doing scientific research on stress with humans that don't apply to animal stress studies. Describe at least two of these challenges. Based on these challenges, discuss and explain your confidence in stress research from animal models and human participants. Cohen and colleagues examined the role of optimistic and pessimistic disposition on mediating the effects of acute and chronic stress. Briefly describe this study and the results. What explanation did researchers give to help explain the findings? Do you think of yourself as more optimistic or pessimistic and what might the implications of that be for your health based on this research?