Answer:
-2.5
Step-by-step explanation:
Here in this question, we are interested in calculating the z-score for a student that had a particular mark at the test
To calculate the z-score, we need to use a mathematical formula
Mathematically;
z-score = (x - mean)/SD
From the question;
x = 76
mean = 86
standard deviation SD = 4
Plugging these values in the equation, we have;
z-score = (76-86)/4 = -10/4 = -2.5
Answer:
24.12
Step-by-step explanation:
The term 'difference' implies subtraction.
25 - 0.88 = 24.12
Huh? this is very confusing 12
D. 28
this is because 48 divided by 12 is 4, 4 times 7 is 28.
