Answer:
E
Step-by-step explanation:
Answer:
0.3745
Step-by-step explanation:
Data
mean (
): 80
standard deviation (
): 4
Normal distribution table is in figure attached
.

Z = (85 - 80)/4 = 1.25
Area below curve = 0.3944
Z = (82 - 80)/4 = 0.5
Area below curve = 0.0199
Proportion of exam scores between 82 and 85?
0.3944 - 0.0199 = 0.3745
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Minus
The quadratic equation is
( -b+-SQRT(b^2 - 4ac) )/2a
Answer:
11111111 111 1 1 1 11
Step-by-step explanation: