Suppose there is a country in which 40% of people are below age
20, 40% are...
Suppose there is a country in which 40% of people are below age
20, 40% are between ages 20 and 40, and 20% are between ages 40 and
60. Assume no one lives above age 60 and the fertility rate is 4.
The initial population size is 100.
(a)Compute the proportion of young, adult, and old after 20, 40,
60, 80, and 100 years.
(b)Calculate the population growth rate over each period of 20
years.
(c)Assume a country with the...
A + B -> C
initial rate data:
[A]
.10, .20, .40, .20, .40
[B]
.50,...
A + B -> C
initial rate data:
[A]
.10, .20, .40, .20, .40
[B]
.50, .30, .60, .60, .30
initial rate (M/s)
.053, .127, 1.02, .254, .509
determine a)the basic rate law for this reaction b)
the rate constant of reaction
A portfolio has the following composition:
Security
Weight
Expected Beta
A
10%
0.8
B
20%
1.1...
A portfolio has the following composition:
Security
Weight
Expected Beta
A
10%
0.8
B
20%
1.1
C
30%
1.3
D
40%
0.7
What is the expected beta of the portfolio?
Stock A had a market value of $20, Stock B had a market value of
$30. During the year, Stock A generated cash flow of $3 and Stock B
generated cash flow of $4. The current market values are, Stock A
is $22 and Stock B is $31.
What is...
Class Limits (Age in years) , Frequency
0-9 ,1
10-19, 7
20-29, 12
30-39 ,12
40-49,...
Class Limits (Age in years) , Frequency
0-9 ,1
10-19, 7
20-29, 12
30-39 ,12
40-49, 23
50-59, 23
60-69 ,32
70-79 ,9
80-89 ,4
90-99, 1
Find the mean, calculate sample variance and sample standard
deviation,
EPIDEMIOLOGY QUESTION
Industry A
Age Group
Person-Years of Experience
Deaths
Rate per 1,000 py
20-29
40,000...
EPIDEMIOLOGY QUESTION
Industry A
Age Group
Person-Years of Experience
Deaths
Rate per 1,000 py
20-29
40,000
80
30-39
30,000
90
40-49
20,000
100
50-59
10,000
200
20-59
100,000
470
Industry B
Age Group
Person-Years of Experience
Deaths
Rate per 1,000 py
20-29
10,000
20
30-39
20,000
60
40-49
30,000
150
50-59
40,000
800
20-59
100,000
1,030
Industry C
Age Group
Person-Years of Experience
Deaths
Rate per 1,000 py
20-29
25,000
30
30-39
25,000
50
40-49
25,000
75
50-59
25,000
315...
In a survey of a group of men, the heights in the 20-29 age
group were...
In a survey of a group of men, the heights in the 20-29 age
group were normally distributed, with a mean of 69.7 inches and a
standard deviation of 4.0 inches. A study participant is randomly
selected. Complete parts (a) through (d) below.
(b) Find the probability that a study participant has a height
that is between 68 and 70 inches.
The probability that the study participant selected at random is
between 68 and 70 inches tall is
A liquid mixture of hydrocarbons has 40% by weight of
cyclohexane, 40% of benzene, and 20%...
A liquid mixture of hydrocarbons has 40% by weight of
cyclohexane, 40% of benzene, and 20% oluene. Assuming that volumes
are additive compute the following: t
(a) species densities of the components in the mixture. (b) overall
density of the mixture (c) concentrations of the components in
mol/m3 (d) mole fractions of the components in the mixture.
A mathematics class consists of 40% freshmen, 30% sophomores,
20% juniors, and 10% seniors.If 50% of...
A mathematics class consists of 40% freshmen, 30% sophomores,
20% juniors, and 10% seniors.If 50% of the freshmen, 60% of the
sophomores, 70% of the juniors, and 80% of the seniors are males,
what is the probability that a randomly selected male student is a
freshman?
Demand Curve: (100,50), (150, 40), (200, 30), (250, 20),
(300,10)
Supply Curve: (50,20), (100, 30), (150,...
Demand Curve: (100,50), (150, 40), (200, 30), (250, 20),
(300,10)
Supply Curve: (50,20), (100, 30), (150, 40), (200, 50), (250,
60), (300, 70)
18. What is the quantity bought and sold in the market if the
government implements a subsidy of $40/unit?
a) 100 b) 150 c) 200 d) 250
For questions 19 and 20, please use the following information
for the demand curve and supply curve:
QD =1000–2P QS =-200+P
19. What is the quantity bought and sold if...