244 - 165 = 79 . . . . one standard deviation
323 - 244 = 79 . . . . one standard deviation
The range of scores is ±1 standard deviation from the mean. The empirical rule says
68% of scores lie in that range.
Answer: 9;0;-3
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
if you imply all the other ones, all the x's cancel out.