The amount deducted from his paycheck for health insurance bi weekly is; $100.94
<h3>What is the amount deducted?</h3>
Since 70% of his health insurance premium is paid by his employer and the remaining deducted, then;
Scott's amount deducted per week for health insurance = 8,748 x 30% = $2,624.40
There are 52 weeks in a year and as such, amount deducted weekly is;
2,624.40/52 weeks = $50.47
Amount deducted bi weekly = 50.47 × 2 = $100.94
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The pH at which bromothymol blue be a perfect green color is; pH = 6.8
<h3>What is the PH?</h3>
For Bromothymol, as HX is yellow and X⁻ is blue, the indicator will be a perfect green color when HX = X⁻.
From Henderson-Hasselbalch formula, we known that:
pH = pka + log [X⁻]/[HX] (1)
Where pka = -log ka = -log(1.6 × 10⁻⁷) = 6.8
Since HX = X⁻, [HX]/[X⁻] = 1
Thus;
pH = 6.8 + log 1
pH = 6.8 + 0
pH = 6.8
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All the sampling methods used in the given survey are; convenience, systematic, and voluntary sampling.
<h3>What is the sampling method used?</h3>
From the question, we see that the surveyor selects the twentieth student who enters the building.
Now, the student do not enter the building to be surveyed but instead for other reasons and as such the researcher takes advantage of that and selects them. This is a form of convenience sampling.
It is also a form of systematic sampling because the researcher selects every twentieth student and not any other.
Lastly, it is a form of Voluntary sampling because the students selected to participate in the survey are free to choose whether to participate in the survey or not.
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C? Least useful information, and includes an opinion, both uncomforting and personal.