Math, asked by ravindran0604, 6 months ago

find the mean weight of 70 students from the following; 50 kg 8 students , 52 kg 12 students 54 kg 15 students 56 kg 20 students 58 kg 8 students 60 kg 6 students 62 kg 2 students 64 kg 1 student

Answers

Answered by devanshuxg6
1

Answer:

55.17

Step-by-step explanation:

Xi=50,52,54,56,58,60,62,64

fi=8,10,15,20,86,2,1

fiXi=400,520,810,1120,464,360,124,64

TOTAL=fi=70. =fiXi=3862

MEAN=fiXi = 3862 = 55.17

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