The time between arrivals of customers at an automatic tellermachine is an exponential random variable with a mean of 5minutes. a) what is the probability that more than threecustomers arrive in 10 minutes? b) what is the probability that the time until the 5thcustomer arrives is less then 15 minutes?

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Atemperature of 1.64◦f corresponds to answer in units of ◦c.