Question
In: Advanced Math
The numbers of polio cases in the world are shown in the table for various years....
The numbers of polio cases in the world are shown in the table
for various years.
| Year | Number of Polio Cases (thousands) |
|---|---|
| 1988 | 350 |
| 1992 | 138 |
| 1996 | 30 |
| 2000 | 6 |
| 2005 | 3.2 |
| 2007 | 1.3 |
Let f(t)f(t) be the number of polio cases in thousands t
years since 1980.
Use a graphing calculator to draw a scattergram of the data. Is it
better to model the data by using a linear or exponential model?
Select an answer Exponential Linear
Find an equation of f. Hint
f(t)=f(t)= Round the coefficients to 4
decimal places.
The number of polio cases is Select an answer decreasing
increasing by Select an answer 25.55% 368665.63%
3686.6563% 74.45% per year.
Predict the number of polio cases in 2014.
Hint
Predict in which year there will be 1 case of polio. Hint
Find the approximate half-life of the number of polio cases.
Hint
years
Solutions
Colby Messinger answered 7 months agoRelated Solutions
A. For each of the cases shown in the following table, calculate the present value of...
A. For each of the cases shown in the following table, calculate
the present value of the cash flow, discounting
the rate given and assuming that the cash flow is received at the
end of the period noted.
Case
Single cash flow ($)
Discount Rate (%)
End of Period
Present Value
A
37,000
12
9
B
25,000
10
12
C
200
5
20
D
40,000
9
10
E
4,500
5
20
B. For each of the cases shown in the...
FOR EACH OF THE CASES SHOWN IN THE TABLE BELOW, CALCULATE THE FUTURE VALUE OF THE...
FOR EACH OF THE CASES SHOWN IN THE TABLE BELOW, CALCULATE THE
FUTURE VALUE OF THE SINGLE CASH FLOW DEPOSITED TODAY THAT WILL BE
AVAILABLE AT THE END OF THE DEPOSIT PERIOD IF THE INTEREST IS
COMPOUNDED ANNUALLY, SEMI ANNUALLY AND QUARTERLY AT THE RATE
SPECIFIED OVER THE GIVEN PERIOD.
CASE
CASH FLOW
INTEREST RATE
DEPOSIT PERIOD (YEARS)
ORDINARY
ANNUITY
ANNUITY DUE
A
$750
8%
10
B
$3,250
12%
8
C
$9,500
16%
20
D
$10,000
20%
4
The table below shows the pattern of reported cases of cholera infection in the world. Describe...
The table below shows the pattern of reported cases of cholera
infection in the world. Describe the areas that may be identified
as have (i) sporadic infection; (ii) endemic infection; (iii)
epidemic infection. Justify your answer.
Number of reported cased(X 1000)
Period reported
India
South East Asia
North America
Africa
Jan-Mar
250
50
0
30
Apr-Jun
200
30
0
0
Jul-Sep
300
0
0
20
Oct-Dec
250
0
0.5
0
An auto dealer's sales numbers are shown in the table below. Find for each month the...
An auto dealer's sales numbers are shown in the table below.
Find for each month the mean, median, and mode prices of the cars
she sold. Round your answers to the nearest dollar.
Number sold
Price
May
June
July
$25,000
22
25
24
$15,000
49
24
24
$13,500
25
49
49
June
mean
$
median
$
mode
$
July
mean
$
median
$
mode
$
An auto dealer's sales numbers are shown in the table below. Find for each month the...
An auto dealer's sales numbers are shown in the table below.
Find for each month the mean, median, and mode prices of the cars
she sold. Round your answers to the nearest dollar.
Number sold
Price
May
June
July
$25,000
22
25
24
$15,000
49
24
24
$13,500
25
49
49
May
mean
$
median
$
mode
$
June
mean
$
median
$
mode
$
July
mean
$
median
$
mode
Consider a world that only consists of the three stocks shown in the following table: LOADING.......
Consider a world that only consists of the three stocks shown in
the following table: LOADING.... a. Calculate the total value of
all shares outstanding currently. b. What fraction of the total
value outstanding does each stock make up? c. You hold the market
portfolio, that is, you have picked portfolio weights equal to the
answer to part b with each stock's weight is equal to its
contribution to the fraction of the total value of all stocks. What
is...
Consider a world that only consists of the three stocks shown in the following table: LOADING......
Consider a world that only consists of the three stocks shown in
the following table:
LOADING...
.
a. Calculate the total value of all shares outstanding
currently.
b. What fraction of the total value outstanding does each stock
make up?
c. You hold the market portfolio, that is, you have picked
portfolio weights equal to the answer to part b with each stock's
weight is equal to its contribution to the fraction of the total
value of all stocks. What...
During one semester, a student received grades in various subjects, as shown in Table 2 below....
During one semester, a student received grades in
various subjects, as shown in Table 2 below. Determine whether
there is a significant difference between the student’s grade at
the 0.05 level. (15 points)
Subject
Scores
Mathematics
72, 80, 83, 75
Science
81, 74, 77
English
88, 82, 90, 87, 80
Economics
74, 71, 77, 70
This is the complete question. I think an Anova needs to be done
to it?
The data shown in the table were collected by surveying 100 employees with five years’ experience....
The data shown in the table were collected by surveying 100
employees with five years’ experience. Find the correlation
relationship for the data. Use Microsoft Excel. Create a scatter
plot. Identify and discuss the type of correlation, and whether is
negative or positive, strong or weak. Create a regression line and
analyze the coefficients for significance. Predict the estimates
salary with 20 years of schooling.
Years of schooling
Total annual salary
10
$32 K
12
$33 K
13
$44.3 K...
Refer to the table. The economy shown is a:
Real GDPConsumption (after taxes)Gross InvestmentNet ExportsGovernment Purchases$0-$20$10$+5$1510010+515402010+515704010+5151006010+5151308010+51516010010+515Refer to the table. The economy shown is a:a. Private economy.b. private open economy.c. mixed closed economy.d. mixed open economy.
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