Answer:
P ( X 50 ) = p ( 45 ) + p ( 46 ) + p ( 47 ) + p ( 48 ) + p ( 49 ) + p ( 50 ) = 0.05 + 0.10 + 0.12 + 0.14 + 0.25 + 0.17 = 0.83
Step-by-step explanation:
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