Complete Question
Let x be a continuous random variable that follows a normal distribution with a mean of 550 and a standard deviation of 75.
a
Find the value of x so that the area under the normal curve to the left of x is .0250.
b
Find the value of x so that the area under the normal curve to the right ot x is .9345.
Answer:
a

b

Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
Generally the value of x so that the area under the normal curve to the left of x is 0.0250 is mathematically represented as



Generally the critical value of 0.0250 to the left is

=> 
=>
=> 
Generally the value of x so that the area under the normal curve to the right of x is 0.9345 is mathematically represented as



Generally the critical value of 0.9345 to the right is

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=>
=> 