If X Is a Normal Random Variable with Mean of 1228

question 4

Multiple Choice

If x is a normal random variable with mean of 1228 and a standard deviation of 120, the number of standard deviations from 1228 to 1380 is:

• A) 10.233
• B) 3.1989
• C) 11.50
• D) 1.267
• E) 2.435

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