On the way to school, a student encounters a traffic light on Main Street. The student estimates that she will get stopped on 23% of school days. During a 5-day school week, what is the probability that she: (Round to 4 decimal places when necessary.)   (a) gets stopped for the first time on Wednesday?    (b) gets stopped at least once during the week?    (c) gets stopped everyday?    (d) gets stopped on Monday, Tuesday and Wednesday?

A committee of 4 is being formed randomly from the employees at a school: 6 administrators, 38 teachers, and 5 staff. What is the probability that all 4 members are administrators? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

A recent survey by the New Statesman on British social attitudes asked respondents if they believe that inequality is too large. The survey found that 65% of the respondents do believe inequality is too large. In a sample of six British citizens, what is the probability that two believe inequality is too large? If required, round your answer to four decimal places.f (2) = In a sample of six British citizens, what is the probability that at least two respondents believe that inequality is too large? If required, round your interim calculations and final answer to four decimal places.P (at least 2) = In a sample of four British citizens, what is the probability that none believe inequality is too large? If required, round your answer to four decimal places.f (0) =

Assume it was determined from a random sample of customers that the probability of buying cake is 40%; the probability of buying ice cream is 62%; and the probability of buying cake or ice cream is 86%. What is the probability of buying chocolate ice cream and frozen yogurt? (Round your answer to 2 decimals)