According to a recent government report, the aging of the U.S. population is translating into many more visits to doctors' offices and hospitals (USA Today, August 7, 2008). It is estimated that an average person makes four visits a year to doctors' offices and hospitals. What is the probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals
Answer:
0.2835 = 28.35% probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals
Step-by-step explanation:
Mean during a time period means that we use the Poisson distribution.
Poisson distribution:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
In which
x is the number of sucesses
e = 2.71828 is the Euler number
[tex]\mu[/tex] is the mean in the given interval.
It is estimated that an average person makes four visits a year to doctors' offices and hospitals.
A year has 12 months, which means that the monthly mean is [tex]\mu = \frac{4}{12} = \frac{1}{3}[/tex]
What is the probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals?
This is:
[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]
In which
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
[tex]P(X = 0) = \frac{e^{-(\frac{1}{3})}*(\frac{1}{3})^{0}}{(0)!} = 0.7165[/tex]
[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.7165 = 0.2835[/tex]
0.2835 = 28.35% probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals
HELP PLS THIS IS DUE SOON
Answer:
4.8/5%=b
Step-by-step explanation:
4.8/5%=96
$96 was the total cost
Amelia has
grown of an inch
every month since
she was born. She
was 22 inches at
birth and is 12
months old now.
How tall is she?
Answer:
Amelia is 264 inches
Step-by-step explanation:
do 22 ×12 because at birth she was 22 inches and now she is 12 months.
What is a pound equal to in fraction form?
Answer:
One pound can be written as 1.0 pounds, and moving the decimal place one place to the left gives you 0.10 pound, which is equal to one tenth of a pound. Convert 16 oz. to one sixteenth of an ounce by moving the decimal one place to the left.
unit 8 homework 4 anwser 10
Answer:what is this
Step-by-step explanation:
que alguien me ayude cuanto hace q yo sali de escuela
Answer:
a=20 m²
b=21 cm²
c=36 dm²
Step-by-step explanation:
A) 12²+16²=a²
144+256=a²
400=a²
√400=a
a=20
B) 28²+b²=35²
784+b²=1225
b²=1225-784
b²=441
b=√441
b=21
C) c²+15²=39²
c²+225=1521
c²=1296
c=√1296
c=36
estimate to find the quotient if 823 divided by 23
Answer:
Step-by-step explanation:
35.7826087
I'm guessing you want it estimated to the nearest tenth so 35.8
can sb help me wit dis ?
Answer:
x=55 degrees
DOE = 117 Degrees
Step-by-step explanation:
You know EOF is equal to COD so you can say
x+8=63
x+8-8=63-8 (subtract 8 from both sides)
x=55 degrees
Next
63 and DOE add up to 180
DOE = 180-63
DOE = 117 Degrees
Which expression is equivalent to
[tex] \sqrt[9]{xy^{2} } [/tex]
this is the answer.
What is the length of QR?
600
20
Q
R
Select the best answer from the choices provided.
Answer:
A. 10 HOPE IT WILL HELP YOU
WILL MARK BRAINLIEST
Answer: 15 and 14
Step-by-step explanation:
The area of a rectangle is x² + 3x – 28 and the width is x + 7. What is the length of the
rectangle?
Answer:
X+4
Step-by-step explanation:
length times width = area
(X+7)(X-4) = x^2 +3x-28
The diagram shows a rectangular prism being broken down to find its volume.
Which equation represents the prism's volume?
A. 24 units3 = 24 units3 ×124 units3 = 24 units3 ×1
B. 24 units3 =12 units3 ×224 units3 =12 units3 ×2
C. 24 units3 =8 units3 ×324 units3 =8 units3 ×3
D. 24 units3 = 6 units3 ×424 units3 = 6 units3 ×4
Answer:
C. 24 units3 =8 units3 ×324 units3 =8 units3 ×3
The raimonde family drove 1,764 miles across the United States on their vacation. If it took a total of 28 hours, write and solve a multiplication equation to find their average speed in miles per hour.
( this is 6th grade math)
Answer:
28 hours for driving 1764 miles
1 hours for driving 1764/28 miles
Average speed = 63 miles/hour
Step-by-step explanation:
What is the approximate volume of the cylindrical cup? Use 3.14 for n.
Answer:
The answer is....
The volume of a cylinder is 2462 feet³.
Please give Brainly
Step-by-step explanation:
Answer:
37.68 cubic inches
Step-by-step explanation:
V=pi*r^2*h
V=3.14*2^2*3
Pls help 30 points 7th grade math
Adter dinner, 3/4 of a pie ramains. If tasha eats 1/6 of the remaining pie, how much of the total pie does tasha eat?
Answer:
Adter ate [tex]\frac{1}{4}[/tex] of the remaining pie.
Step-by-step explanation:
equation:
⇒ [tex]\frac{3}{4} - \frac{1}{6}[/tex]
when subtracting fractions, make sure both denominators are the same, to do this, multiply the first fraction by 3 and the second fraction by 2
⇒ [tex]\frac{3}{4} x 3 - \frac{1}{6} x 2[/tex]
⇒ [tex]\frac{9}{12} - \frac{6}{12}[/tex]
solve:
⇒ [tex]\frac{9}{12} - \frac{6}{12}[/tex]
⇒ [tex]\frac{3}{12}[/tex]
simplify:
⇒ [tex]\frac{3}{12}[/tex] = [tex]\frac{1}{4}[/tex]
The Great Pyramid of Giza has an approximate height of 252 yards, and the square base has side lengths of approximately 152 yards. What is the approximate volume of the pyramid?
A. 12, 768 cubic yards
B. 38,304 cubic yards
C. 1,940,736 cubic yards
D. 5,822,208 cubic yards
Answer:
b/38,304
Step-by-step explanation:
when you multiple 252 times 157 you will get 38,304.
Please help. NOT TAKING LINKS!
Answer:
D. -5/6
Calculation Steps:
1/6 + 2/3 =
1/6 + 2 × 2/3 × 2 =
1/6 + 4/6 =
1 + 4/6 = 5/6
After a number of complaints about its tech assistance, a computer manufacturer examined samples of calls to determine the frequency of wrong advice given to callers. Each sample consisted of 100 calls. SAMPLE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Number of errors 5 3 5 7 4 6 8 4 5 9 3 4 5 6 6 7 Click here for the Excel Data File a. Determine 95 percent limits. (Do not round your intermediate calculations. Round your final answers to 2 decimal places. Round up any negative control limit value to zero.) b. Is the tech assistance process stable (i.e., in control)
Answer:
a) Upper Control Limit = 0.10
Lower Control Limit = 0.01
b) The tech assistance process is stable and in control.
Step-by-step explanation:
Given - After a number of complaints about its tech assistance, a
computer manufacturer examined samples of calls to determine
the frequency of wrong advice given to callers. Each sample
consisted of 100 calls.
SAMPLE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Number of errors 5 3 5 7 4 6 8 4 5 9 3 4 5 6 6 7
To find - a. Determine 95 percent limits.
b. Is the tech assistance process stable (i.e., in control)
Proof -
z = 95% confidence interval
= 1.96
⇒z = 1.96
Proportion of defects,P = total defectives/total observations
= 0.0544
⇒P = 0.0544
Now,
Q = 1-P
= 0.9456
⇒Q = 0.9456
Now,
Average sample size, N = 100
Standard deviation = [tex]\sqrt{\frac{P.Q}{N} }[/tex]
= 0.0227
Now,
Upper Control Limit = P + z(Standard deviation)
= 0.0988
⇒Upper Control Limit = 0.0988 ≈ 0.10
And
Lower Control Limit = P - z(Standard deviation )
= 0.0099
⇒Lower Control Limit = 0.0099 ≈ 0.01
∴ we get
Upper Control Limit = 0.10
Lower Control Limit = 0.01
b.)
Now,
it is clear that the fraction defective values are wit in upper an lower control limits.
So, The tech assistance process is stable and in control.
What is the vertex?
f(x) = -x2 - 4x + 12
Answer:
-2, 16
Step-by-step explanation:
What is the value of x
Answer:
12
Step-by-step explanation:
Add 15 and 9 together, then divide by 2!
15. What is x to the nearest tenth?
А
2
62
44
C.c
B
78
A 37.5
B 52.5
© 75.0
D 103.0
Answer:
................
D 103.0
HELP URGENT PLZ PLZ PLZ
Answer: D. [tex]y=\frac{1}{9} x^{2}[/tex]
Step-by-step explanation: The smaller the coefficient of a fraction by the quadratic function (the x squared value), the more narrow the graph becomes. 1/4 is larger than 1/9 and the other two whole numbers are still larger than 1/9. Even though -1 is less than 1/9, this only makes the graph flip, not make it any more narrow. Fractions are what squeeze graphs, negatives do not make a difference (i.e. -1/4 is the same size of narrowness as 1/4).
Mr. Martinez is having the half court circle in the gym repainted. They are
going to outline the circle in red. The inside of the circle will be painted
black. The circle has a diameter of 26 units.
3. To determine how much black paint to buy, he asks the custodian to
determine the area of the circle. What is the area of the circle to the
nearest hundredth of a square unit?
Area = TER?
Answer:
The area of the circle is 531.14 square unis
Step-by-step explanation:
Area of a circle = [tex]\pi[/tex][tex]r^{2}[/tex]
where r is the radius of the circle
Given that the diameter of the circle = 26 units, the radius can be determined by;
r = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{26}{2}[/tex]
r = 13 units
So that,
Area of the circle = [tex]\frac{22}{7}[/tex] x [tex](13)^{2}[/tex]
= [tex]\frac{22}{7}[/tex] x 169
= 531.1429
The area of the circle is 531.14 square unis.
Find the area of this shape
Answer:
I am pretty sure its 6
Step-by-step explanation:
3 x 4 = 12 divided by 2 = 6
Formula of a triangle:
BH x 1/2
Answer:
6 inches
Step-by-step explanation:
help please thank you
scribe two different methods to find the elapsed time from 2:30 p.m. to 2:58 p.m.
Answer:
Subtract 58-30 and add a 2:28. And Subtract 2:58-2:30
Step-by-step explanation:
simplify the expression 10x - 8x + 2 + 10
Answer:
2x + 12
Explanation:
10x - 8x = 2x, 2 + 10 = 12, so the simplified answer is 2x + 12
What is 30% of 40,756.00
Answer:
12226.8
Step-by-step explanation:
Answer:
12226.8
Step-by-step explanation: