Answer:
The answer is B because it's correct you guessed it right
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
Answer:
y intercept= 0
Step-by-step explanation:
in the formula y=mx+b, m is the slope and b is the y intercept. here we are not given "b" so the y intercept it 0