For numbers 17-19: CI 41 45 36 -40 31 - 35 26 - 30 f 9 Xm 43 50 CB 40.5 -- 45.5 35.5 - 40.5 30.5 - 35.5 25.5 - 30.5 17 38 41 11 tam 387 646 363 364 Efxm = 1 760 33 28 24 13 13 n = 50 17. What is the mean of the above grouped data? A. 35.20 B. 35.79 C. 37.64 D. 36.74 18. What is the cumulative frequency from the median classes A. 50 B. 41 C. 24 D. 13 19. What is the lower boundary of the modal classe A. 40.5 B. 35.5 C. 30.5 D. 25.5 20. Nico's grades in the first 3 quarters is 89,88. 92. What grade in the 4th quarter must he needed to obtain for him to have an average of 90? A. 88 B. 90 C.91 D.94

NONSENSE-REPORT​