Following data:2,5,15,25, 20,12,8,7,6,21,17,30,23,40,51,15,2,9,57,19,25 are grouped in the 0-5, 5-10, 10-15 etc.Find yhe frequency of class 20-25
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Answer:
3
Step-by-step explanation:
In the class 20-25 there are 20,21 and 23
So the frequency is 3
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