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EXPLAIN ALL METHODS OF STATISTICS STANDARD 10TH WITH EXAMPLES.....YOU WILL GET THANKS FOR ANSWERING....BRAINLIEST MARK....5 POINTS...IF UH EXPLAIN IN GOOD AND EASY WAY BUT IN DETAIL...❤
Answers
Answer:
hey dear here is your answer
Step-by-step explanation:
Mean can be calculated using three method
a) Direct method
This method can be very calculation intensive if the values of f and x are large.We have big calculations and chance of making mistake is quite high
Steps involved in finding the mean using Direct Method
(1) Prepare a frequency table with the help of class marks
(2) Multiply fi x i and find the sum of it.
(4) Use the above formula and find the mean.
b) Assumed mean method
Where
a=> Assumed mean
di => xi –a
This method is quite useful when the values of f and x are large. It makes the calculation easiar.In this method we take some assumed mean and calculate the deviation from it and then calculate mean using above formula
Steps involved in finding the mean using Assumed Mean Method
(1) Prepare a frequency table.
(2) Choose A and take deviations di = xi - A of the values of xi .
(3) Multiply fi d i and find the sum of it.
(4) Use the above formula and find the mean.
c) Step deviation Method
Where
a=> Assumed mean
ui => (xi –a)/h
This method is quite useful when the values of f and x are large. It makes the calculation further easiar by dividing the deviation from common factor.
Steps involved in finding the mean using Step Deviation Method
(1) Prepare a frequency table.
(2) Choose A and h and take ui = (xi –a)/h of the values of xi .
(3) Multiply fi u i and find the sum of it.
(4) Use the above formula and find the mean.
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Answer:
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