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??????? Given that ( z ) is a standard normal random variable, compute the following probabilities (to 4 decimals). a. ( P(-1.98 leq z leq
??????? Given that \( z \) is a standard normal random variable, compute the following probabilities (to 4 decimals). a. \( P(-1.98 \leq z \leq 0.49) \) b. \( P(0.57 \leq z \leq 1.27) \) c. \( P(-1.73 \leq z 2 answers
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