Drag the expressions into the boxes to correctly complete the table. Polynomial : Not a Polynomial

x^3-4x-3
4/x^2-4x+3
|x|^2+4√x-2
-x^5+7x-1/2^2+9
x^4+x^3√7+2x^2-√3/2x+3.14
x^4+5/x^3-√x+8

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .