the salary of workers of a factory is known to follow normal distribution with an average salary of rs 10000 and standard deviation of salary as 2000 if 50 workers receive salary more than 14000 then the total no of workers in factory is
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total no of workers in factory is 2193
Step-by-step explanation:
the salary of workers of a factory is known to follow normal distribution with an average salary of rs 10000 and standard deviation of salary as 2000 if 50 workers receive salary more than 14000 then the total no of workers in factory is
z = (x - Mean)/Sd
z = (14000 - 10000)/2000
z = 4000/2000
z = 2
=> 97.72 % receives upto 14000
=> 2.28 % received more than 14000
2.28 % = 50
total no of workers in factory is 2193
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