Your drawer contains 10 red socks and 7 blue socks. it's to dark to see which are which, but you grab two anyway. what is the probability that you get one of each color?

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?