Find the equation of a line that
passes through (5.3) and is
perpendicular to y - x
a) y=x+2
w yux-8
ay--x+2
go to station 4
go to station 2
go to station
go to station 10

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”?