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Vanyuwa [196]
2 years ago
10

Pls help asap! Will give brainliest

Mathematics
2 answers:
Crazy boy [7]2 years ago
6 0

Answer:

A and B and C

Step-by-step explanation:

san4es73 [151]2 years ago
5 0

Answer:

i think its B and C

Step-by-step explanation:

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A contractor records all of the bedroom areas, in square feet, of a five-bedroom house as: 100, 100, 120, 120, 180 What is the v
kifflom [539]
The variance is the total of the squared distances of the given data from the mean. 

This can be calculated through the equation,
        
                            σ² = summation of X² / N  - μ²

where σ² is the variance X's are the data, N is the number of terms, and μ is the mean.

   summation of X² = 100² + 100² + 120² + 120² + 180² = 81200
                          N = 5
                                        μ = (100 + 100 + 120 + 120 + 180) / 5
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Substituting these values to the equation for variance,
                                 
                              σ² = (81200/5) - 124² = 864

Thus, the variance is equal to 864. 
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3 years ago
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