Mathematics, 03.03.2020 01:34 queenkendra16
Pieces of 2 by 4 by 72 lumber sold by a certain yard have been observed by a consumer watchdog to have 0, 1, 2, 3, 4, or 5 visible flaws (but rarely more). The probabilities for various numbers of flaws are provided by its cumulative distribution function Fr)Px: 0 4 Fox) .45 .67 .81 .89 96 a) As a customer, I find it unacceptable to buy such a piece of lumber if it has more than 3 flaws. What is the probability that a piece I buy will by accident be unacceptable? b) Find the average number of flaws in a piece of lumber chosen arbitrarily, E(X)
Answers: 2
Mathematics, 21.06.2019 15:00, vnzgirl
1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.
Answers: 1
Mathematics, 21.06.2019 15:30, yourgirlnevaeh
Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81
Answers: 2
Pieces of 2 by 4 by 72 lumber sold by a certain yard have been observed by a consumer watchdog to ha...
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