22+f3 23=20+ --------- (-13) *10 2 ------------------ (13+f3)-13

Find the missing frequency the following data given that the median mark Marks : 0-10 10-20 20-30 30-40 40-50 No. Of stu : 5 8 ? 6 3
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1 Answer

If y = ƒ(x), then : x = ƒֿ¹(y). If 3 = ƒ(2), then : 2 = ƒֿ¹(3). Thus : ƒֿ¹(3) = 2.
by Level 2 User (1.8k points)

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