Add the missing lines of code below to read the marks of 10 quizzes in variables Quizl to Quizle and find the average of the quizzes. data quiz; *Add missing lines of code. Missing lines can be more than one; datalines; 90 88 79 100 97 96 94 95 93 88 60 90 66 77 . . 88 84 86 90 90 90 90 90 90 90 90 1 .