The standard deviation of a dataset is the square root of the variance.
The standard deviation of the same set of data is 4
The variance is given as:
Take the square root of both sides to calculate the standard deviation
Substitute 16 for .
So, we have:
Take the positive square root of 16
Hence, the standard deviation of the same set of data is 4
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brainly.com/question/475676
Answer: 28.27cm^2
Step-by-step explanation:
π ×r^2
π×3×3
9π or 28.27 (2dp)
Answer:
y = 218
Step-by-step explanation:
Mean = (Sum of all numbers)/(How many numbers present)
27 = (20 + 2y + 25 + y + 30)/27
27 = (3y + 75)/27
3y + 75 = 729
3y = 729 - 75
3y = 654
y = 218
Simplify 150/12 and you should have
Answer:
x is a variable, it can be ANY NUMBER
Step-by-step explanation: