1. In your own words, what is a nonparametric test? What is a parametric test (Section 13-2)? 2. In your own words, identify an advantage of using rank correlation instead of linear correlation (Section 13-6). 3. In your own words, what is the difference between a nonparametric test and a distribution-free test (Section 13-7)?

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2

step-by-step explanation:

no of data

divide by no of mode

step-by-step explanation:

where is the questions