Assume that annual household income in Maryland follows a normal distri­bution with a median of $75,847 and standard deviation of $33,800.a. What is the probability that a household in Maryland has an annual income of $100,000 or more?b. What is the probability that a household in Maryland has an annual income of $40,000 or less?c. What is the probability that a household in Maryland has an annual income between $50,000 and $70,000?d. What is the annual income of a household in the 90th percentile of annual house­hold income in Maryland?

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.