Answer : 11 feet
Explanation: This means the radius of the circular pattern being formed is 11 feet. So the sprinkler can spread the water 11 feet away from it
90x + 4
Factor out GCF
2 ( 45x + 2)
Standard error of the mean is computed by:
Standard error = SD/ sqrt N
Where:
N is the sample size
SD is the standard deviation
To get the standard deviation, you need to get the sqrt of
the variance = sqrt 9 = 3
So plugging in our data:
Standard error = 3 / sqrt (16)
= 0.75
