Which of the following is NOT an observation about critical values? Choose the correct answer below. A. A critical value is the number on the borderline separating sample statistics that are likely to occur from those that are unlikely to occur. B. The number z Subscript alpha divided by 2zα/2 is a critical value that is a z score with the property that it separates an area of alpha divided by 2α/2 in the right tail of the standard normal distribution. C. The number z Subscript alpha divided by 2zα/2 is a critical value that corresponds to an area of 1minus−alpha divided by 2α/2 to its left. D. A critical value is the area in the right-tail region of the standard normal curve.

75%

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i need points

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sorry bubs

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!

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