Question

find the mean of the following data (salary- 5000, 6000, 7500, 9000) no. of person 4,5,4,2 answer this question ​

Answer 1

Hey mate

Step-by-step explanation:

xi = 5000 , 6000 , 7500 , 9000

fi = 4 , 5 ,. 4 ,. 2

xifi = 20000 , 30000 , 30000 , 18000

Mean = Σxifi / Σfi {Σfixi = 98000 , Σfi = 15 }

= 98000 / 15

= 6533.34

Σ = sigma which means summation..

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