Which function represents a reflection of f(x) 3
8
(4)* across the y-axis?
g(x) =
O g(x) = -(4)
O g(x) = Q (4)*
O g(x) = 2 (4)*

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”?