Question

Suppose a study of speeding violations and drivers who use cell phones produced the following information. There were 25 cellphone users who committed to speed violation. There were 75 cell phone users committed no speed violation last year. There were total of 50 speed violation cases and 100 no speed violation cases observed. Fill the table and find the following probabilities. (You may keep the final answer as a fraction or 2dp) (?) ?(?) = (?) ?(?) = (?) ?(?) = (?) ?(? ??? ?) = (?) ?(? ??? ?) = (?) ?(? ??? ?) = (?) ?(? ?? ?) = (?) ?(? ?? ?) = ????? ?????????(?) ?? ????? ?????????(?) ????�

Answer 1

	Speed Violation(S)	No Speed Violation(G)
Cell Phone Users(C )	25	75	100
Not Cell Phone Users(N)	25	25	50
	50	100	150

Please note that I have taken C = Cell phone user and N = Not cell phone user as not defined in question

a)

?(?) = 100/150 = 2/3 = 0.67

(?) ?(?) = 50/150 = 1/3 = 0.33

(?) ?(?) =

= 100/150 = 2/3 = 0.67

(?) ?(? ??? ?) =

25/150 = 1/6 = 0.17

(?) ?(? ??? ?) =

25/150 = 1/6 = 0.17

(?) ?(? ??? ?) = 0

(?) ?(? ?? ?) = 125/150 = 5/6 = 0.83

(?) ?(? ?? ?) = 125/150 = 5/6 = 0.83

Please revert in case of any doubt.

Please upvote. Thanks in advance