Answer:
The upper bound of a 95% confidence interval for the proportion of individuals over the age of 25 in Oregon who do not have a high school diploma is of 0.2568.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the z-score that has a p-value of [tex]1 - \frac{\alpha}{2}[/tex].
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a p-value of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
In a sample of 234 individuals over the age of 25, chosen at random from the state of Oregon, 48 did not have a high school diploma.
This means that [tex]n = 234, \pi = \frac{48}{234} = 0.2051[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2051 + 1.96\sqrt{\frac{0.2051*0.7949}{234}} = 0.2568[/tex]
The upper bound of a 95% confidence interval for the proportion of individuals over the age of 25 in Oregon who do not have a high school diploma is of 0.2568.
(1,5) (2,5) (1,-5) (2,-5) is this a function
Answer:
A function is an expression in terms of a variable, usually x. Hence, that is not a function.
Step-by-step explanation:
What you have there are four sets of coordinates.
Answer:
no
Step-by-step explanation:
(1,5) (2,5) (1,-5) (2,-5)
This is not a function
To be a function each x must only go to one y
x=1 goes to both 5 and -5
x=2 goes to both 5 and -5
It is not a function
Using the net below, find the surface area
of the pyramid.
6 km
3 cm
3 cm
Surface Area =
[?] cm2
Enter
Answer:
its not 46.11 its 47 your welcome for the help :)
Step-by-step explanation:
PLEASE HELPPPPPP
can I get a real-life example of an exothermic reaction?
Answer:
When an ice cube tray, filled with water is placed in a freezer, it slowly loses heat and start to cool down to become ice cubes. Changing of water into an ice cube is an exothermic reaction. Snow formation in clouds is also an exothermic reaction. Clouds come into existence from condensation of water vapor.
What is the length of side PR?
A. 8 cm
B. 11 cm
C. V105 cm
D. V176 cm
E. V274 cm
Answer:
D. √176 cm
Step-by-step explanation:
Were given a right triangle.
PQ = 7 cm
QR = 15 cm
To find the length of side PR, apply Pythagorean theorem, which is c² = a² + b²
Where,
c = hypotenuse/longest side = 15 cm
a = PR
b = 7 cm
Thus:
15² = PR² + 7²
225 = PR² + 49
225 - 49 = PR²
176 = PR²
√176 = PR
PR = √176 cm
Will give brainlest!!! Please view picture for question.
Step-by-step explanation: 6 4 12 00
V = a²(h/3) where a is the length of a side s and since h = (2/3)s
V = s²(2s/3)/3
V = s³(2/9) I'll go the D
What is the slope of the line that contains the points (-2, 2) and (3, 4)?
O A.
-
5
2
B.
UIN
O c.
O D.
Answer:
2/5
Step-by-step explanation:
(-2 , 2) = (x1 , x2)
(3 , 4) = (x2 , y2)
slope = y2 - y1/x2 - x1
=4 - 2/3 - (-2)
=2/3+2
=2/5
if f(x)=x^2 + x find f(x+2)
Answer:
x^2+5x+6
Step-by-step explanation:
A motorcycle that usually sells for $400 is marked down to $300. What is the markdown percent?
Answer:
25%
Step-by-step explanation:
Classification of respondents only on the basis of gender is an application of Select one:
1)Ordinal Scale
2)Ratio Scale
3)Nominal Scale
4) Interval Scale
solve the equation with inverse operations HELP NOW!!!
Algebra
Multiply both sides by six to find a.
[tex]a = 30[/tex]
Answer:
Hello! answer: a = 30
Step-by-step explanation:
6 × 5 = 30
30/6 = 5 therefore a = 30 hope that helps!
What is the value of O!?
Answer:
oxygen
Step-by-step explanation:
help fill red and grey mark brainly
Answer:
Step-by-step explanation:
#6. correct
#7. 3 3/4 - 1 7/8 = 1 7/8
#8. correct
#9. 3 3/8 + 3 3/4 = 7 1/8
#10. 19 - 16 7/8 = 2 1/8
All results in pounds.
a patient is advised to supplement her diet with 3g of calcium per day. The calcium tablets she purchases 300mg per tablet. How many tablets should the patient take per day?
Answer:
Number of tablet needed = 1 tablet
Step-by-step explanation:
Given:
Amount of calcium per day needed = 3 gram
Amount of calcium in a tablet = 300 mg
Find:
Number of tablet needed
Computation:
Number of tablet needed = Amount of calcium per day needed / Amount of calcium in a tablet
Number of tablet needed = 3gram / 300 milligram
Number of tablet needed = 300 milligram / 300 milligram
Number of tablet needed = 1 tablet
Find the value x in the triangle shown below
Answer: 70º
Step-by-step explanation:there are two angles with the same measurement on the vertices, therefore with the same angle. A triangle has a sum of 180º in the inside angles. 55º+55º=110º, and 180º-110=70º
Workers load 5 identical large crates and 3 identical small crates onto a freight elevator. The crates have a combined weight of 1375 pounds. Later
that day, the workers load 3 more identical large crates and 6 more identical small crates onto the freight elevator. These crates have a combined
weight of 1350 pounds.
What is the weight of each crate?
A. Each large crate weighs 185 pounds, and each small crate weighs 150 pounds.
B. Each large crate weighs 200 pounds, and each small crate weighs 125 pounds.
C. Each large crate weighs 225 pounds, and each small crate weighs 112.5 pounds.
D. Each large crate weighs 250 pounds, and each small crate weighs 100 pounds.
Answer:
B. Each large crate weighs 200 pounds, and each small crate weighs 125 pounds.
Step-by-step explanation:
Let L be the weight of the large crate and S the weight of the small crate.
Given that 5 identical large crates and 3 identical small crates have a combined weight of 1375 pounds,
5L + 3S = 1375 (1)
Also, in the second loading 3 identical large crates and 6 identical small crates have a combined weight of 1350 pounds,
3L + 6S = 1350 (2)
multiplying equation (1) by 2 and (2) by 1, we have
5L + 3S = 1375 (1) × 2
3L + 6S = 1350 (2) × 1
10L + 6S = 2750 (3)
3L + 6S = 1350 (4)
Subtracting (4) from (3), we have
7L = 1400
dividing through by 7, we have
L = 1400/7
L = 200
Substituting L = 200 into (1), we have
5L + 3S = 1375 (1)
5(200) + 3S = 1375 (1)
1000 + 3S = 1375
3S = 1375 - 1000
3S = 375
dividing through by 3, we have
S = 375/3
S = 125
So, each large crate weighs 200 pounds, and each small crate weighs 125 pounds.
Help with imaginary numbers please!!!
Problem 1
Answer: -7 + 8i------------------
Work Shown:
[tex]-\sqrt{49}+\sqrt{-64}\\\\-\sqrt{7^2}+\sqrt{-1*8^2}\\\\-\sqrt{7^2}+\sqrt{-1}*\sqrt{8^2}\\\\-7+i*8\\\\-7+8i\\\\[/tex]
=============================================
Problem 2
Answer: -2sqrt(6) + 10i------------------
Work Shown:
[tex]\sqrt{-100}-\sqrt{24}\\\\\sqrt{-1*10^2}-\sqrt{4*6}\\\\\sqrt{-1*10^2}-\sqrt{2^2*6}\\\\\sqrt{-1}*\sqrt{10^2}-\sqrt{2^2}*\sqrt{6}\\\\i*10-2*\sqrt{6}\\\\-2\sqrt{6}+10i\\\\[/tex]
=============================================
Problem 3
Answer: 4 - 9i------------------
Work Shown:
[tex]-\sqrt{-81}+\sqrt{16}\\\\-\sqrt{-1*9^2}+\sqrt{4^2}\\\\-\sqrt{-1}*\sqrt{9^2}+\sqrt{4^2}\\\\-i*9+4\\\\4-9i\\\\[/tex]
=============================================
Problem 4
Answer: 8i------------------
Work Shown:
[tex]\sqrt{-1}*2\sqrt{16}\\\\\sqrt{-1}*2\sqrt{4^2}\\\\i*2*4\\\\8i\\\\[/tex]
We could express this as 0+8i, but I think 8i looks much cleaner.
2. Write the ratio as a fraction in simplest form, 20 mi to 32 mi. (picture)
Answer:
5/8
Step-by-step explanation:
20:32 .... 10:16..... 5:8.
Question 2 of 40
Find the equation of the line below.
"0 (2,10)
(1. 5)
”I
O A. y=1x
O B. y: %x
O C. y= 5x
0 D. 3! =14
If mAB = 30° and mCD = 110°, find mLE.
D
110°
А
30°
E
с
B
O 15°
O 30°
O 40°
O 70°
Answer:
40
Step-by-step explanation:
Use the Outside Angles Theorem,
[tex] \frac{110 - 30}{2} = 40[/tex]
Can someone please help me?
Answer:
C
Step-by-step explanation:
I found the answer online( didnt know how to solve it)
Sets of odd sum=9
Sets of product of 6=3
Total sets=18
So (9+3)/18
Equals 12/18
Which equals 2/3
if matrix A is of the size 2×3 and we are able to add matrix B to A. what must be the size of B be?
Answer:
6 be because 2×3 =6 so B it will be the given answer
The dot plots show the number of pages Mandee read per day for two books in a series.
Book 1
Book 2
.
A
20 21 22 23 24 25 26
Number of Pages Read
20 21 22 23 24 25 26
Number of Pages Read
The mean absolute deviation for each book is 1.25. The difference between the median number of pages read per day for each book is how
many times the mean absolute deviation?
OA
5
ОВ.
2
Ос.
4
OD
3
Answer:
Step-by-step explanation:
2
PLEASE HELP ME ASAP ILL GIVE BRAINLIEST!!
Find the measures of the supplementary angles that satisfy each
case.
The difference of the measures of the angles is 35º.
A woman needs to work out how long it will take to drive to York.
She checks the journey on a website.
The distance from her house to York is 80 miles.
20 miles of the journey are through roadworks with a speed restriction of 40mph.
She should drive the rest of the journey at an average speed of 50mph
Answer:
It will take her 1hr 42mins.
Using the formula of speed, It will take 1 hour 42 minutes to drive to New York.
What is formula of speed?
The formula for Speed is given as [Speed = Distance ÷ Time].
The formula for time is given as [Time = Distance ÷ Speed ].
Time taken to drive to New York is :
= (20 miles / 40 mph) + ((80 - 20) miles /50 mph)
= 30 minutes + 1 hour 12 minutes
= 1 hour 42 minutes
Learn more about formula of speed here
https://brainly.com/question/3004254
#SPJ2
Can someone please help me?
Answer:
A and C
Step-by-step explanation:
Normal distribution is characterized by a symmetrical mean and two tails (_/\_ like this but a bit more curvy)
HELP ME ANSWER THESE AND GET THE LETTER CODE I DONT WANNA FAIL SUMMER SCHOOL
can someone help please !!!
Answer:
1. C
2. B
3. A
Step-by-step explanation:
Yellow ink indicates all areas where x is positive.
Orange ink indicates all areas where x is negative.
Green indicates all areas where y is positive.
Blue indicates all areas where y is negative.
(4+2)+8=14 choose an equivalent addition sentence that shows the associative of addition
Answer:
14 = 14
Step-by-step explanation:
(4 + 2) + 8 = 14
6 + 8 = 14
14 = 14
The function f (t) = 310(0.2)24t represents the change in a quantity over 7 days,
What does the constant 0.2 reveal about the rate of change of the quantity?
the rate percentage
Answer:
80% decrease in the quantity over 7 days
Step-by-step explanation:
Given data
We have the function
f (t) = 310(0.2)24
the above function is similar to the exponential function
f (t) = P(1±r)^t
Now the value 0.2
This means that there is 80% decrease in the quantity over 7 days
Weekly wages at a certain factory are
normally distributed with a mean of
$400 and a standard deviation of $50.
Find the probability that a worker
selected at random makes between
$350 and $400.
Answer:
47.69 PROBIBILIT
Step-by-step explanation:
MATHS