Rachel cut a length of rope 4 and 1/3 meters into two pieces. The length of one piece of rope is 2 and 1/2 meters. what is the l
2 answers:
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Answer:
Option B.
Step-by-step explanation:
Given information:
Σ(x − M) = 44
where, M is mean.
Sample size = 12
The computational formula for sample variance is
where, M is sample mean and N is sample size.
Substitute Σ(x − M) = 44 and N=12 in the above formula.
The sample variance is 4.0.
Therefore, the correct option is B.