Question: d. ) P (x - 80) = P ( Xnormal > 80.5 Z = ( Xnormal - 1) 10 = (80.5-75)/ 4.3301 = 1.27 =

d. ) P (x - 80) = P ( Xnormal > 80.5 Z = ( Xnormal - 1) 10 = (80.5-75)/ 4.3301 = 1.27 = P( z > 1.27) = 0.1020 The difference can be accounted as normal distribution is a continuous distribution ; while binomial is a discrete distribution
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