Q7. The Table shows the distribution of the number of students of different age groups, who are members of a school chess club that has 50 members in total. (f is the frequency of students in the age group. and f.d. is the frequency density) Age (y) 12-14 15-16 17-18 f 12 i. iv. f.d. i. The values of i., ii., iii. and iv. are respectively: iii. 7 www www А. 4,20, 10, 14 В. 12, 12, 24, 7 С. 4, 24, 12, 14 D. 24, 12, 12, 7

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