Mathematics, 14.01.2020 04:31, josephvaldez518
Some nations require their students to pass an exam before earning their primary school degrees or diplomas. a certain nation gives students an exam whose scores are normally distributed with a mean of 41 points and a standard deviation of 9 points. suppose we select 2 of these testers at random, and define the random variable d as the difference between their scores. we can assume that their scores are independent. find the probability that their scores differ by more than 15 points.
Answers: 2
Mathematics, 20.06.2019 18:02, channarlawassociate
Irene bought 3 yards of fabric and a spool of thread for $28.10. if the spool of thread cost $1.25, how much did the fabric cost per yard?
Answers: 2
Mathematics, 21.06.2019 12:30, CoolRahim9090
Which expression is equivalent to (9x - 3 1/ + 1 3/8)
Answers: 1
Some nations require their students to pass an exam before earning their primary school degrees or d...
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