The test scores of a geometry class are given below:
[tex]$90,75,72,88,85$[/tex]
The teacher wants to find the variance for the class population. What is the value of the numerator of the calculation of the variance?
Variance: [tex]$\sigma^2=\frac{\left(x_1-\mu\right)^2+\left(x_2-\mu\right)^2+\ldots+\left(x_N-\mu\right)^2}{N}$[/tex]
A. -160
B. -6
C. 16
D. 258
Answer (3)
It would by 1/2. Because 50% is one half.
First you multiply 50 x2030=101,500second / by 200,000 and 101500 and move point 2 over 50%
50% can be expressed as a fraction by recognizing that it means '50 out of 100,' which simplifies to 2 1 . This indicates that food production must increase by half to meet future demands.
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