Which table represents a direct variation? VX
Table A
6
х
4
8
10
13
у
7
9
11
4
Table B
6
18
8
10
30
у
12
24
Table C
6
4
8
10
okay

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”?