Given two distributions with the following characteristics: Distribution A
m = 45,600 s = 6,333
Distribution B
m = 33.40 s = 4.05
Population 1
m = 700 s = 50
Population 2
m = 29,000 s = 5,000
If a value from Distribution A is 50,000 and a value from Distribution B is 40.0, convert each value to a standardized z-value and indicate which one is relatively closer to its respective mean.

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!