Of the 400 doctors who attended a conference, 240 practiced family medicine and 130 were from countries outside the united states..one-third of the family medics practitioners were not from the united states.

what is the probability that a doctor practices family medicine or is from the united states

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.