Using an appropriate method, find the mean of the following frequencyd

1.	Using an appropriate method, find the mean of the following frequencydistribution:Classinterval84-9090-9696-102 102-108 108-114 114-120Frequency81016231211Which method did you use, and why?
Answer» Answer: Here the simplest METHOD if you DONT wanna calculate big numbers.You can use Step-deviation method i.e MEAN ( X ) = a+ (ΣFiUi/ΣFI)h where a=assumed mean , h=class SIZE,ui=Xi-a/h where a is the assumed mean, h is the class size. Hope you find this easy

Using an appropriate method, find the mean of the following frequencydistribution:Classinterval84-9090-9696-102 102-108 108-114 114-120Frequency81016231211Which method did you use, and why?

Answer»

Answer:

Here the simplest METHOD if you DONT wanna calculate big numbers.You can use Step-deviation method i.e

MEAN ( X ) = a+ (ΣFiUi/ΣFI)h

where a=assumed mean , h=class SIZE,ui=Xi-a/h

where a is the assumed mean, h is the class size.

Hope you find this easy

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Using an appropriate method, find the mean of the following frequencydistribution:Classinterval84-9090-9696-102 102-108 108-114 114-120Frequency81016231211Which method did you use, and why?​

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Using an appropriate method, find the mean of the following frequencydistribution:Classinterval84-9090-9696-102 102-108 108-114 114-120Frequency81016231211Which method did you use, and why?