Homework Answers
Answer: True.
(The attack rate can be calculated by the formula: the number of people who became ill ÷ the number of people at risk for the illness.)
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QUESTION 3 In a population of 50,000 people, 20 have disease X and 5 people die...
Assume a population of 100,000 people of whom 20 are sick with disease X, and in...
Assume a population of 100,000 people of whom 20 are sick with disease X, and in 1 year, 18 of 20 die from disease X. 1) What is the mortality rate from disease X? 2) What is the case-fatality from disease X? Question 16 (2 points) In direct age-adjustment, a standard population is used in order to eliminate the effects of any differences in age between two or more populations being compared. a) True b) False Question 17 (2 points)...
question completion Status: QUESTION 1 2 points We want to test the effectiveness of a pre-exposure...
question completion Status: QUESTION 1 2 points We want to test the effectiveness of a pre-exposure prophylaxis (PrEP). Participants are given the pill or not. Each person meets with the researchers once a year for 3 years to check their HIV status. This might be an example of which study design RCT Cross-sectional study Prospective cohort study Case-control study QUESTION 2 The cross products ratio closely approximates the relative risk for case-control studies and cohort studies True False 2 points...
Assume a population of 1,000 people of when 15 are sick with a certain disease, 12 of the 15 die from this disease. Calc...
Assume a population of 1,000 people of when 15 are sick with a certain disease, 12 of the 15 die from this disease. Calculate the mortality rate from the disease. Supposed you're talking to a 5 year old. Explain difference between prevalence and incidence. Active surveillance is usually more accurate than passive surveillance. True False In 2006 there were 5,600 deaths due to cancer in a certain community of individuals aged 40-65 years. The community has a population of 45,000....
6&7 pls QUESTION 6 The USA and Canada are the two high-income countries that provide government...
6&7 pls
QUESTION 6 The USA and Canada are the two high-income countries that provide government sponsored universal health care coverage for their citizens O True O False QUESTION 7 Which of the following statements is not true about health systems? O Health systems require universal health care coverage for all persons in order to provide care to the population O Most co untries spend a substantial amount of their national budget on their health care system even though there...
Question 1. First, we study a model for a disease which spreads quickly through a population....
Question 1. First, we study a model for a disease which spreads quickly through a population. The rate of new infections at time t is proportional to the number of people who are currently infected at time t, and the number of people who are susceptible at time t. (a) Explain why I(t) satisfies the first-order ODE dI BI(N − 1) dt where ß > 0 is a constant. (b) Find the equilibrium solution(s) of the ODE (in terms of...
m #2: In tracking the propagation of a disease, a population can be divided into 3 groups: the portion that is susc...
m #2: In tracking the propagation of a disease, a population can be divided into 3 groups: the portion that is susceptible, S), the portion that is infected, F(t), and the portion that is recovering, R(t). Each of these will change according to a differential equation: S' F =-5 S F R - so that the portion of the population that is infected is increasing in proportion to the number of susceptible people that contract the disease, and decreasing as...
Using the following five (5) disease processes, you will need to create a 20 question test....
Using the following five (5) disease processes, you will need to create a 20 question test. 1. You must provide four (4) questions for each disease process. 2. There must be one (1) nutrition question and one (1) pharmacology question for each disease. a. Osteoarthritis b. Rheumatoid Arthritis c. Systemic Lupus Erythematous d. Gout e. Fibromyalgia 3. There must be a variety of styles of questions (only 1 multiple choice per test). Please use any of the following styles: 1....
QUESTION 3 Assume x = 4 and y = 5, which of the following is true?...
QUESTION 3 Assume x = 4 and y = 5, which of the following is true? x < 5 || y < 5 x > 5 || y > 5 x < 5 && y < 5 x > 5 && y > 5 QUESTION 14 Which of the following statements are the same? (A) x -= x + 4 (B) x = x + 4 - x (C) x = x - (x + 4) (A) and (B) are...
Question For this problem, consider the function y=f(x)= |x| + x 3 on the domain of...
Question For this problem, consider the function
y=f(x)=
|x|
+
x
3
on the domain of all real numbers.
(a) The value of
limx→
∞f(x)
is
. (If you need to use -∞ or ∞, enter -infinity or
infinity.)
(b) The value of
limx→
−∞f(x)
is
. (If you need to use -∞ or ∞, enter -infinity or
infinity.)
(c) There are two x-intercepts; list these in increasing
order: s=
, t=
.
(d) The intercepts in part (c) divide...
Some people think that the attitude of cancer patients can influence the progress of their disease....
Some people think that the attitude of cancer patients can influence the progress of their disease. We can't experiment with humans, but here is a rat experiment on this theme. Inject 60 rats with tumor cells and then divide them at random into two groups of 30. All the rats receive electric shocks, but rats in Group 1 can end the shock by pressing a lever. (Rats learn this sort of thing quickly.) The rats in Group 2 cannot control...
Assume a population of 100,000 people of whom 20 are sick with disease X, and in 1 year, 18 of 20 die from disease X. 1) What is the mortality rate from disease X? 2) What is the case-fatality from disease X? Question 16 (2 points) In direct age-adjustment, a standard population is used in order to eliminate the effects of any differences in age between two or more populations being compared. a) True b) False Question 17 (2 points)...
question completion Status: QUESTION 1 2 points We want to test the effectiveness of a pre-exposure prophylaxis (PrEP). Participants are given the pill or not. Each person meets with the researchers once a year for 3 years to check their HIV status. This might be an example of which study design RCT Cross-sectional study Prospective cohort study Case-control study QUESTION 2 The cross products ratio closely approximates the relative risk for case-control studies and cohort studies True False 2 points...
6&7 pls
QUESTION 6 The USA and Canada are the two high-income countries that provide government sponsored universal health care coverage for their citizens O True O False QUESTION 7 Which of the following statements is not true about health systems? O Health systems require universal health care coverage for all persons in order to provide care to the population O Most co untries spend a substantial amount of their national budget on their health care system even though there...
Question 1. First, we study a model for a disease which spreads quickly through a population. The rate of new infections at time t is proportional to the number of people who are currently infected at time t, and the number of people who are susceptible at time t. (a) Explain why I(t) satisfies the first-order ODE dI BI(N − 1) dt where ß > 0 is a constant. (b) Find the equilibrium solution(s) of the ODE (in terms of...
m #2: In tracking the propagation of a disease, a population can be divided into 3 groups: the portion that is susceptible, S), the portion that is infected, F(t), and the portion that is recovering, R(t). Each of these will change according to a differential equation: S' F =-5 S F R - so that the portion of the population that is infected is increasing in proportion to the number of susceptible people that contract the disease, and decreasing as...
Question For this problem, consider the function
y=f(x)=
|x|
+
x
3
on the domain of all real numbers.
(a) The value of
limx→
∞f(x)
is
. (If you need to use -∞ or ∞, enter -infinity or
infinity.)
(b) The value of
limx→
−∞f(x)
is
. (If you need to use -∞ or ∞, enter -infinity or
infinity.)
(c) There are two x-intercepts; list these in increasing
order: s=
, t=
.
(d) The intercepts in part (c) divide...
Some people think that the attitude of cancer patients can influence the progress of their disease. We can't experiment with humans, but here is a rat experiment on this theme. Inject 60 rats with tumor cells and then divide them at random into two groups of 30. All the rats receive electric shocks, but rats in Group 1 can end the shock by pressing a lever. (Rats learn this sort of thing quickly.) The rats in Group 2 cannot control...
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