Apsychologist has collected some data on the number of friends that college students report they have. the data set follows: 6, 4, 3, 2, 7, 3, 8, 5. if the psychologist reports 3 as a measure of central tendency, which measure was used?

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

the answer is: the length is 5/6 yards.

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step-by-step explanation: