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patricia ross

patricia r.

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A popular internet site about video gaming runs a one-month poll asking the following question: "Do you play video games every day?" with answer options "Yes" or "No". 87% of all answers indicated that the respective users did play video games every day. Which of the following is true? (Select one) Group of answer choices We could use this to conclude that approximately 87% of all Australians play video games every day. Apart from other potential sources of response bias, the results of the survey can be biased if users were able to respond to the survey more than once, with their voting counted multiple times. The users were randomly sampled to reduce response bias All of the above

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1. Did the Foundation have any Net Assets with donor restrictions in perpetuity? ___________

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What is one way to reduce the need for physical restraint use?

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3) For the mechanical system shown in Fig. 1, write the force equations at each coordinate and then determine the following transfer functions: \begin{align*} a) \frac{X(s)}{U(s)} ; \quad b) \frac{Y(s)}{U(s)} ; \quad c) \frac{Y(s)}{X(s)} \\ \end{align*}

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first cell, the origin of life thru natural means, NOT unnatural means. What are you comments concerning PROOF that the fist cell evolved naturally? Can you show me the chemical reactions involved?

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In factorial designs, the response produced when the treatments of one factor interact with the treatments of another in influencing the response variable is known as: - interaction - main effect - error - replication

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<<<<< Question 8 of 10 > >> ? Moving to another question will save this response. 0.5 points Save Answer Which of the below is Not a file format for data storage and representation? CSV file XML file TSV file RTF file

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a) An investment note for $12,000 was made at 10% per year and it is compounded annually for 4 years. Find the maturity value. (5 marks) b) Christie Holdon needs $30,000 to open a hobby shop in three years. How much must she deposit today if her bank will pay 5% interest compounded semi-annually? (5 marks) c) Adult tickets to the play cost $8, while student tickets cost $4. If 120 tickets were sold for a total of $800, how many adult tickets were sold? (2.5 marks) (a) 105 tickets (b) 60 tickets (c) 80 tickets (d) 35 tickets Find the median for the following lists of numbers. Do not round. (2.5 marks) English exam scores: 83, 76, 42, 83, 98, 76, 90, 76, 56, 63, 45, 59 e) Mark signed a simple discount note for $3050 for 100 days at a rate of 9%. Find the effective interest rate based on the proceeds received by McClennan. (5 marks) f) A local bank lends $5500 using a 120-day 10% simple interest note that was signed on March 6. The bank later sells the note at a discount of 12% on May 16. Find the proceeds. (10 marks) g) Under what conditions does a conditional probability satisfy the following Pr(A|B) = Pr(A)? (5 marks) Provide an example with real-life terms. h) Find the roots of the following equation: x^2 - 7x + 12 = 0 and graph the equation. Be precise in your description. (5 marks)

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Q1. Imagine a species in which males can adopt either of two strategies in competitions for territories; an aggressive one (termed Hawk) or a passive one (termed dove). Competition for territories is by combat in hawks and displays in doves. Hawks always beat doves so doves don't even display in response, they merely retreat with no cost. When hawks compete against one another, one wins and one loses with a 50% chance of each result - the winner gains the resources and the loser is injured and pays a cost of 45 units of resource. When doves compete against one another, one wins and one loses with a 50% chance of each result - the winner gains the resources and the loser is exhausted and pays a cost of 15 units of resource. Winning a contest yields the equivalent of 30 units of resource. (4 pts) Calculate the equilibrium hawk and dove frequencies in this scenario. When you submit the answers, enter the value as a percentage to the nearest 0.01 without any extra units (e.g., enter "35.04", not "35 percent" or "35.04%").

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Bonus question 28 Question (Non-anonymous question) (5 Points) Blood flows unsteadily with heart rate of 60 bpm through a 2.5 cm diameter artery at average velocity equals to 0.5 m/s. Experimentally, and using cardiac simulator, we had to replace blood with water. Calculate: the new average velocity and heart rate that are required to maintain the dynamic similarity. For the blood the dynamic viscosity was $3.5 \times 10^{-3}$ Pa.s and the density was 1060 kg/m$^3$. For water those quantities were $8.90 \times 10^{-4}$ Pa.s and 1000 kg/m$^3$, respectively. Upload file

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