Question

Class Interval 10 - 25 25 - 40 40 - 55 55 - 70 70 - 85 85 - 100
Frequency
2
6
6
6
How do you find the deviation from the assumed mean for the above data?

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Answer 1

Answer:

firstly find xi and then from that assume one mean suggestions: assume the middle value as mean then then find di by xi-A and then fidi by fi×di then put it into formula mean= sum of fidi ÷ sum of fi

Explanation:

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