, 22.06.2019 20:00 HarleyQuinn117

Ineed . asap sandra swims the 100-meter freestyle for her school’s swim team. her state’s ranking system awards 3 points for first place, 2 points for second, 1 point for third, and 0 points if she does not place. her coach used her statistics from last season to design a simulation using a random number generator to predict how many points she would receive in her first race this season. what is sandra’s expected value of points awarded for a race? (show work)

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Mathematics, 21.06.2019 15:00
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Mathematics, 21.06.2019 20:30
Several years​ ago, 47​% of parents who had children in grades​ k-12 were satisfied with the quality of education the students receive. a recent poll asked 1 comma 015 parents who have children in grades​ k-12 if they were satisfied with the quality of education the students receive. of the 1 comma 015 ​surveyed, 472 indicated that they were satisfied. construct a 95​% confidence interval to assess whether this represents evidence that​ parents' attitudes toward the quality of education have changed.