You intend to conduct a goodness-of-fit test for a mutinomial with 4 categories. You collect data from 50 subjects what are the degrees of freedom for x^2 disturbution for this test

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Extra points! find the missing dimension! need asap