Question: Hello this is from a probability problem and i do not understand how step 4 turns into step 5 which is 0.7486-0.0228. Thank you very

Hello this is from a probability problem and i do not understand how step 4 turns into step 5 which is 0.7486-0.0228. Thank you very much.

P[4 < X < 4.801 ]

=> P [ (4-4.6)/0.3 < Z < (4.801-4.6)/0.3 ]

=> P [ -2 < Z < 0.67 ]

=> P[ Z < = 0.67 ] - P [ Z < = -2 ]

=> 0.7486-0.0228

=>0.7258

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