If A and Bare events with P(A) 0.6, P(A OR B) 0.98, P(A AND B) 0.02, find F(B). Provide your answer below: .4 9 FEEDBACK

Rail ridership during the summer months in the North-East is believed to beclosely related to the number of tourists visiting the region. The following tableshows the data on the number of tourists and North-East ridership for the past16 years. (Answer in Excel showing formulas for answers)Year      Tourists( in millions)     Rail Ridership (in millions) 2000              9                                         2.32001              4                                         1.9 2002              7                                         1.7 2003              5                                         1.8 2004              12                                       2.8 2005              13                                       2.9 2006              14                                       2.42007              20                                       4.8 2008              7                                        1.3 2009              5                                         1.12010…

Paul wants to estimate the mean number of siblings for each student in his school. He records the number of siblings for each of 100 randomly selected students in the school. What is the parameter?

Find the score that 75% of students will exceed. Consider the NAEP scores which are approximately normal N(288,38). 75% of the students will score above x on this exam. Find x.

We have a population of frogs with a mean weight of 0.9 pounds. We select four frogs and find their average weight. What do you suppose it will be?

Nationally 58.3% of federal prisoners are serving time for drug offenses. A warden feels that in his prison the percentage is even higher. He surveys 350 randomly selected inmates’ records and finds that 260 of the inmates are drug offenders. At
= 0.05, is he correct?