Based on a 72% national retention rate, does a college where 502 of the 598 freshmen returned the next year as sophomores have a right to brag that it has an unusually high retention rate? Explain.

Find the vertex of the function given below y=x^2-6x+1

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68