A fan has five equally spaced blades. Suppose you line up two fans directly on top of each other. What is the least number of de
grees that you can rotate the top fan so that the two fans are perfectly aligned again?
A: 120 Degrees
B: 60 Degrees
C: 90 Degrees
D: 72 Degrees
A: 120 Degrees
B: 60 Degrees
C: 90 Degrees
D: 72 Degrees
1 answer:
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Answer:
48
Step-by-step explanation:
Given that:
The interval for score = 60 - 42 = 18
If we divide it by the 3 standard deviations; the interval result into
= 18/3
= 6
So, the standard deviation is 6, and the mean = 42 + 6
= 48