Someone plz help me :,)
1 answer:
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⇒The Variance tells us spread between each variate in data set from mean.
Now, Coming to the Question
⇒Sample of 14 students were taken from a population of 168 students.
Variance =Expected value of square of each variate taken from mean, which can be represented as
Size of Sample taken in terms of Percentage
⇒Sample Size is Approximately only 8.4% of total Population,which is very small, that can't represent the whole Population Variance.
Option B:→ 14 , is most appropriate, which Represents the Variance of 14 student height.
Answer:
y = 120 ( x - 1/2 ) ( x + 2 )
Step-by-step explanation:
As you can see in every parenthesis there is a coefficient in front of every x term. We do not want them do be there. So we ll eliminate them.
In other words we will factor out from inside each parenthesis the coefficient. So: