Mathematics, 04.10.2020 21:01 kcarstensen59070
Mr. Jackson gave an exam worth 50 points.
The mean score on the exam was 38, and the standard deviation was 4.
Mr. Jackson also reported his students’ z-scores.
Corey’s z-score was –1.75. This means that Corey scored ___
points on the exam.
Answers: 1
Mathematics, 21.06.2019 18:40
The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?
Answers: 2
Mathematics, 21.06.2019 23:30
Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?
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Mathematics, 22.06.2019 03:30
Aking and his army will attempt to capture a fortress. the left and right flanks break off from the main group to attack the west and east guard towers. suppose the left flank has a 60% chance of success and the right flank has a 75% chance of success, independently of one another. if both flanks capture their respective targets, then the king has a 98% chance of successfully taking the fort. if, however, only the left flank captures its tower, the king has an 80% chance of success; if only the right flank succeeds, the king has a 50% chance. if both flanks fail, then the king's chance of capturing the fort drops to 20%. it turns out the king captures the fort. what is the probability that one, and only one, flank was successful (either the left, or the right, but not both)? (round your answer to 3 decimal places)
Answers: 2
Mr. Jackson gave an exam worth 50 points.
The mean score on the exam was 38, and the standard devia...
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