Is -4 greater,less than or equal to +4 ?
1 answer:
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Answer:
The probability is
Step-by-step explanation:
From the question we are told that
The sample mean is
The standard deviation is
The random number value is x =900
The probability that a trainee earn less than 900 a month is mathematically represented as
Generally the z-value for the normal distribution is mathematically represented as
So From above we have
Now from the z-table