SOlution:-
The probability is 0.8557
P(-2.07 < Z < 1.15) = P(Z < 1.15) − P(Z < −
2.07)
= 0.8749 - 0.0192
= 0.8557
=> P(−2.07 < Z < 1.15) = 0.8557
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part B
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