<span>The minus sign of the z-score shows that the score is below the mean.
6 points below the mean means the difference of the score and mean is -6
z = (X-Mean)/SD
-0.50 = -6 / SD
SD = -6/-0.50 = 12
The population standard deviation = 12</span>
Answer:
4
Step-by-step explanation:
3y - 4 + 2y
0 = 3y - 4 + 2y
4 + 0 = 3y - 2y
4 = y
y = 4
is this what you want ?
Answer:
The score of the fourth test should be 82
Step-by-step explanation:
Let the score of the fourth test be x.
(3×90+x)/4=88
270+x=352
x=82
Answer:
c) When r = 14, StartAbsoluteValue 14 minus 4 EndAbsoluteValue greater-than 8, which is true because 10 is greater than 8.
Step-by-step explanation:
got it right on edgenuity 2020
Answer:
8.7 meters left or 870 cm left
0.256 is fraction... 87/340
Step-by-step explanation:
34-25-0.3=8.7 8.7 x 100=870 cm