Question: If x i N ( 4 2 0 , 6 4 0 0 ) , find the sollowing probabilitio a ) P ( x 3

If xiN(420,6400), find the sollowing probabilitio a)P(x350)=?
b)P(250x350)=?
c)P(250x450)=?
d)P(x250)+P(x>450)=?
If xiN(420,6400), find the sollowing probabilitio a)P(x350)=? b)P(250x350)=? c)P(250x450)=? d)P(x250)+P(x>450)=?

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