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The Blair family was one of the first to come to the original 13 colonies (now part of the USA). They had 7 children. Assuming

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The Blair family was one of the first to come to the original 13 colonies (now part of the USA). They had 7 children. Assuming that the probability of a child being a girl is 0.5, find the probability that the Blair family had... (a) ...at least 5 girls? (b) ...at most 6 girls? Round your answers to 4 places after the decimal point, if necessary

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