The attention span of a two-yearold is exponentially distributed with a mean of about 8 minutes. Suppose we randomly survey 60 two-year-olds. 1. In words, X = 2. X~ 3. In words} = 4. ~ 5. Before doing any calculations, which do you think will be higher? Explain why the probability that an individual attention span is less than 10 minutes; or ii. the probability that the average attention span for the 60 children in less than 10 minutes? Why? 6. Calculate the probabilities in part [5}. 7. Explain why the distribution for X is not exponential. Edit View Insert Format Tools Table 12pt v Paragraph v B I U A v 57 v T2 v p ('1') |Swords /