A career services representative wants to study association between a graduating student's college (7 levels - Arts and Letters, Business Administration, Education, Engineering, Professional Studies and Fine Arts, Sciences, Health and Human Services), and their employment status upon graduation (3 levels - unemployed, underemployed or employed outside of field of study, employed in field of study) . How many degrees of freedom should be used for the chi-square test

17

step-by-step explanation:

51/3=17

thus 17 is your answer.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right