2) A trader has 2 types of products which weight's are of type P: U(1;2) gr and type Q: U(4;5) gr. He mixes them 40% and 60% respectively and puts them in boxes of 100 units. Those boxes have to weigh at least 200gr in order to be sold. a- Find the % of boxes that satisfy this condition (+200gr). b- Mean weight of the boxes

2) A trader has 2 types of products which weight's are of type P: U(1;2) gr and type Q: U(4;5) gr. He mixes them 40% and 60% respectively and puts them in boxes of 100 units. Those boxes have to weigh at least 200gr in order to be sold. a- Find the % of boxes that satisfy this condition (+200gr). b- Mean weight of the boxes

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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14. Match these values of r with the accompanying scatterplots: 0.363, 0.994, - 0.747, 0.747, and 1. Click the icon to view the scatterplots. Match the values of r to the scatterplots. Scatterplot 1, r= (1) %3D Scatterplot 2, r= (2) %3D Scatterplot 3, r= (3) Scatterplot 4, r= (4) – Scatterplot 5, r= (5). 6: Scatterplots Scatterplot 1 Scatterplot 2 Scatterplot 3 157 14- 6- 13- > 4- 12- 11- 2- 10 0 0.2 0.4 0.6 0.8 0. 0.2 0.4 0.6 0.8 1 1 0.2 0.4 0.6 0.8 1 Scatterplot 4 Scatterplot 5 6- 6- .. 4- > 4- 2- 2- 0. 0.2 0.4 0.6 0.8 1 0. 0.2 0.4 0.6 0.8 1 (1) O 0.994 O 0.747 0 1 O - 0.747 O 0.363 (2) O 0.994 O - 0.747 O 0.363 O 1 O 0.747 (3) O 0.994 O 0.747 O 1 O 0.747 O 0.363 (4) O 0.994 O -0.747 O 0.747 O 0.363 (5) O 0.363 O-0.747 0 1 O 0.747 6- 4.
3. People lose muscle mass as they age. Suppose a person lost 7% of their muscle mass between ages 50 and 60 (based on what they had at age 50) and 8% of their muscle mass from 60 to 70 (based on what they had at age 60). What percentage of the muscle mass that they had at age 50 have they lost by age 70? The following approach is INCORRECT! Explain why. The person lost 1% and then lost 8%. Since 1% + 8% =15%, they lost 15%. Explanation: Work: Answer the question, supporting your answer with work.
In 1997, the average price of a group of items was 25% more than in 1996 but 25% less than in 1995 and it was 40% more than in 1998. Reduce the data to price relatives using (i) 1996 as the base. euan. e :
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#4) AJ got a 72% on his BIO-140 test. How many points did he earn out of the 50 points? percent атоиnt 100 base
99.744 1+3.014e-0.799t represents the percentage of companies using Microsoft Word t years since 1984. What percentage of companies used 22) The logistical model P(t) Microsoft Word in 1995?
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Biologists in Minnesota are interested in determining if there is a difference in the invasion rate of Asian Carp (which can be detrimental to the environment) between the Mississippi River and Lake Mille Lacs. In the Mississippi River, it was found that 206 of 579 fish caught were Asian Carp. In Lake Mille Lacs, 28 of 132 fish caught were Asian Carp. Let p, = the true proportion of Asian Carp in the Mississippi River and let p2 = the true proportion of Asian Carp in Lake Mille Lacs. A test of Ho: P₁ = P2 vs. Ha: P₁ P₂ resulted in a p-value of 0.0015. Which of the following is a correct conclusion? (A) The test is not appropriate, since the researchers should have conducted a one-sided test. (B) The test is not appropriate, since the sample size is too small to conduct an inference test for proportions. (C) The test is not appropriate, since the two sample sizes are very different. (D) The p-value of this test is large, indicating we have sufficient evidence to conclude that a…
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Before every flight, the pilot must verify that the total weight of the load is less than the maximum allowable load for the aircraft. The aircraft can carry 42 passengers, and a flight has fuel and baggage that allows for the total passenger load of 6,972lb. The pilot sees that the plane is full and all the passengers are men. The aircraft will be overloaded if the mean weight of the passengers is greater than 6,972lb/42=166lb. What is the probability that the aircraft is overloaded? Should the pilot take any action to correct for an overloaded aircraft? Assume that the weights of men are normally distributed with a mean of 176.9lb and a standard deviation of 37.7. THE probability is approximately. ? Round to four decimal places.
Ginny’s professors conspired to all give a test on the same day. She gets an 82 on her psychology exam with μ = 76 and σ = 12. She receives a z-score of -.25 on her management exam. Finally, she scored at the 50th percentile on her normally distributed math exam. Place her test scores in order from lowest to highest score.
please do i) and ii)