Ipromise to give brainliest no ! plz if i get the answers i will have an a in my class ive been asking all this week i beg plzz someone answer what measures of center and spread are best used if the data is symmetrical and asymmetrical? explain your reasoning. what are the different shapes of a data set? explain left and right skew and how this affects the mean of a data set. what is the line of best fit? why do we want the sum of the residuals to be as close to zero as possible? how can you tell if data have outliers? what is the difference between joint and marginal frequency? what do the values of the correlation coefficient tell us? provide an example. what is the difference between correlation and causation? what makes causation difficult to prove?

measures of center (where the data are located along the number line)

measure of spread (how much variation there is about the center)

Step-by-step explanation:

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this