450 is 75% of what number?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false