Give the slope and the y-intercept of the line y= −x+8
. Make sure the y-intercept is written as an ordered pair.
Slope:
Y-intercept:

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”?