chahdhamdy
21.06.2019 •
Mathematics
Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?
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Ответ:
16
Step-by-step explanation:
sum of 8 and 10=18
5 times of sum of 8 and 10= 18×5=80
1/4 of 5 times of sum of 8 and 10= 1/4×80=20
and then subtracted 4 from 20 =20-4=16