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Question 1
Age Group (in years)
% of Population in Age Group
Heart Disease Rate per 100,000 person-years
INDIA
U.S.A.
WORLD
< 30
60%
30%
50%
50
75
30-55
40%
80
150
> 55
10%
20%
120
400
Question 2
Influenza Rate per 1,000 person-years
CITY A
CITY B
CITY C
Massachusetts
YOUNG
80%
2
10
30
OLD
70
110
5
There are 10,000 individuals in City A, which is located in Massachusetts. Eight young individuals and 420 old individuals develop the flu over the course of a year.
Question 3
Phthalates are present in many diverse products, including insect repellents, body lotions, perfumes, and food packaging. Because animal experiments suggest that phthalates may have an adverse effect on the male reproductive system, a group of infertility specialists decided to conduct a case-control study on phthalate exposure and sperm abnormalities in adult men.100 cases with sperm abnormalities and 100 controls were identified and enrolled from among patients at their infertility clinic. 30 cases and 10 controls had high urinary phthalate levels; the remainder had normal urinary phthalate levels.
Independent events based probability. A company operates a telephone order system for a catalogue of its outdoor clothing products. The catalogue orders are processed in three stages. In the first stage, the telephone operator enters the order int..
A Chemist needs 100 milliliters of a 76% solution but has only 55% and 85% solutions available. Find how many milliliters of each that should me mixed to get the desired soultion?
Find f'(x) using the appropriate rule and simplify to one expression with positive exponents. Find all values of x, using algebra, where f'(x)=0 (Write your answer with positive exponents)
1. How old are you now? At what age do you hope to retire? These questions are really about answering: How many years do you have until you retire?
The surface area of this pyramid is 189cm squared.The area of the square base is 49cm squared. What is the area of one triangular face of the lateral surface? Show the steps of your solution and explain your work.
Suppose that when L= 30 and K=8, the labor force is decreasing at a rate of 2000 labor hours per year and capital is increasing at a rate of $500,000 per year. Find the rate of change of production.
t an altitude of 8 miles and passes directly over a radar antenna. When the plane has a distance 10 miles from the radar, the radar detects that the distance in increasing at a rate of 300 miles/hour. What is the speed of the plane?
An airplane is traveling with an airspeed of 420 mph and a heading of 72 degrees. a wind of 32 mph is blowing at a heading of 130 degrees. find the ground speed and the course of the airplane.
Check for symmetry with respect to the x and y-axis and the origin.
If you deposit $10,000 in a savings account now, what rate compounded monthly would be required for you to withdraw $12,500 at the end of 5 years
thirty companies comprise the djia. just how big are these companies? one common method for measuring the size ofnbsp a
Young's double-slit experiment is performed with 589nm light and a distance of 2m between the slits and the screen. The tenth interference minimum is observed 7.26mm from the central maximum. Determine the spacing of the slits.
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