In the last election a state representative received 48% of the votes cast

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In the last election a state representative received 48% of the votes cast. One year after the election the representative organized a survey that asked a random sample of 400 people whether they would vote for him in the next election. If we assume that his popularity has not changed, we want to calculate the probability that more than half of the sample would vote for him? The Z-soore for the value 0.5 is ( approximated to the second decimal place) and the probability required is . (approximated to the fourth decimal place)