9 feet on the sides hope this helps
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Answer: Length of the blue line segment= 10.8 unit
s
Step-by-step explanation:
Key point: the sum of length of string is equal to the major axis.
Given that,
The length of major axis= 22 unit
s
Length of red line segment= 11.2 unit
s
Now,
The length of major axis= length of red line segment + length of blue line segment
22= 11.2 + length of blue line segment
Length of blue line segment= 22 – 11.2= 10.8 units
2.5 and 3.5 are two standard deviations from the mean, since 2.5 = 3 - 2(0.25) and 3.5 = 3+2(0.25).
The empirical (68-95-99.7) rule says that approximately 95% of a normal distribution falls within two standard deviations of the mean.