Question: 20. 21. Let a: be a continuous random variable that follows a normal distribution with a mean of 550 and a standard deviation of 75.

20. 21. Let a: be a continuous random variable that follows a normal distribution with a mean of 550 and a standard deviation of 75. Find the value of x such that the area to the left of x is 0.250. Let x be a continuous random variable that follows a normal distribution with a mean of 9.74 and a standard deviation of 0.46. Find the value of :3 such that the area to the right of w is 0.9351

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