Answer:
The answer is option B.
Step-by-step explanation:
Answer:
3 is 15 degrees and 1 is 67 degrees
Answer:
Mean = 30
standard Deviation = 2.74
Step-by-step explanation:
Formula
mean = np
Standard Deviation = 
from the question = 40
P = 75% or 0.75
q = 1 - p = 1 - 75% or 1 - 0.75
To find mean
mean = 40 x 0.75
= 30
For Standard Deviation (SD)
Standard Deviation =
= 
= 
:. Standard Deviation = 2.74
Answer:
AE
Step-by-step explanation:
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I believe the answer would be a.