contestada

marks 5 A 15 20 25 The value of B O 10 O 13 O 15 None of these The value of D O 20 O 25 30 None of these The value of C O 14 O 12 O 15 None of these 14 19 24 29 Frequency B 15 35 20 20 Percentage Frequency 10.00 с 35.00 D 20.00 Time