probability of standard normal variable

Statistics
Tutor: None Selected Time limit: 1 Day

If z is a standard normal variable, find the probability.

 P(-0.73 < z < 2.27)

Jul 3rd, 2015

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P( -0.73 < Z < 2.27 ) 
= P( Z < 2.27 ) - P( Z < -0.73 ) 
= 0.9883962 - 0.2326951 
= 0.7557011

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Jul 3rd, 2015

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