Answer:
Mean
Step-by-step explanation:
class interval fi xi fixi
10-25 2 17.5 35
25-40 3 32.5 97.5
40-55 7 47.5 332.5
10-25 6 62.5 375
10-25 6 77.5 465
10-25 6 92.5 555
total fi = 30
total fixi = 1860
now ,
mean = 62
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