The equation of the line perpendicular to 5x+2y=20 and containing the point (5,10) is:
1 answer:
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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
