Answer:
See explanation
Step-by-step explanation:
We want to verify that:
Verifying from left, we have
Expand the perfect square in the right:
We expand to get:
We simplify to get:
Cancel common factors:
This finally gives:
LCM the last common multiple. the greatest common factor is the biggest number that will go into the 2 numbers so it can be no bigger than the 2 numbers. the LCM is larger than at least one of them
The option D is the correct option.
According to the statement
we have to define the sample variance in the words.
So,
The sample variance is the sum of the squared deviations from the mean divided by the number of measurements minus one.
and in the case of the population variance it becomes
The population variance is the average of the squared distances of the measurements on all units in the population from the mean.
This is the method by which we define the sample variance and population variance.
So, The option D is the correct option.
Learn more about the VARIANCE here brainly.com/question/15858152
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Answer:
Step-by-step explanation:
10(3)+2(10)(4)+2(3)(4)=30+80+24
=134
Answer:
34/99
Step-by-step explanation:
