Answer:
P(0.8< p ^ <0.9)≈0.87
Step-by-step explanation:
trust me
The probability that the administrator's results are within 5 percentage points of the school board's 85% claim is approximately 0.919.
What is probability?Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.
To find the probability that the administrator's results are within 5 percentage points of the school board's 85% claim, we need to find the probability that the sample proportion of families sending their children to public school is between 80% and 90%.
We can use the normal approximation to the binomial distribution to calculate this probability. Since the sample size is large (n = 120) and the population proportion is not too close to 0 or 1 (p = 0.85), we can use the normal approximation.
The mean of the sampling distribution is the population proportion, which is 0.85 in this case. The standard deviation of the sampling distribution is given by the formula:
SD = √((p × (1 - p)) / n)
Plugging in the values, we get:
SD = √((0.85 (1 - 0.85)) / 120)
= √(0.01225 / 120)
= √(0.0001010417)
= 0.0101
Now we can use the normal distribution calculator to find the probability that the sample proportion is between 0.80 and 0.90. Plugging in the mean (0.85) and standard deviation (0.0101) and the upper and lower limits (0.80 and 0.90), we get a probability of 0.919.
Therefore, the required probability is approximately 0.919.
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What is the measure of angle U?
A. 35°
B. 45°
C. 100°
D. 180°
Answer:
c
Step-by-step explanation:
e has the same exact angle
Answer:
c
Step-by-step explanation:
same as her/him heheheh I I really
look at the photo to answer
17 POINTS!!!
The prism shown has a volume of 35 cm.
Work out h, the height of the triangular cross section.
h
7 cm
4 cm
Answer:
the height is 2.5 cm
Step-by-step explanation:
The computation of the height of the triangular section is shown below:
As we know that
Volume = One-half × base × height
35 = One-half × 4 × height × 7
So, the height is 2.5 cm
Answer:
Height = 2.5cm
Step-by-step explanation:
Volume = Base(b) x Height(h) x Length(l) / 2
Substitute the information that you have into the equation
Volume = 4 x Height(h) x 7 / 2
Height = 4x7 / 2
= 14cm
35 / 14
= 2.5cm
ASAP PLEASE HELP ME !!!!
Answer:
90 mallards
Step-by-step explanation:
No. of ducks = 200
Mallards = 45%
45% of 200 = 45/100 × 200
=90
How many square units is the surface area of the box corresponding to the net?
Answer:
64
Step-by-step explanation:
We have two squares of 4x4 units and 4 rectangles of 4x2 units, therefore
[tex]2 \cdot (4 \cdot 4)= 2 \cdot 16 = 32 \text{ squre units}[/tex]
[tex]4 \cdot (4 \cdot 2)= 4 \cdot 8 = 32 \text{ squre units}[/tex]
Total Area is therefore 32 + 32 = 64 square units
Subtract – 2.2 + 3x – 9 from 8x2 + 10x – 10.
Answer:
=3x−11
2(4x2+5x−5)
Step-by-step explanation:
both subtracted: −8x2−7x−1
A triangle has angle measures of 95° and 65° What is the measure of the third angle
Two similar rectangles are shown. Which statement is true? A) The area of rectangle B is 1 3 the area of rectangle A. B) The area of rectangle B is 1 9 the area of rectangle A. C) The area of rectangle B is nine times the area of rectangle A. Eliminate D) The area of rectangle B is three times the area of rectangle A
Answer:
I think it is 19 I not really sure
Step-by-step explanation:
o work it out of my paper and I got 19
Answer: The answer to this math question about finding the statement is very true about 2 similar rectangles are being shown here below is B). B) The area of rectangle B is [tex]\frac{1}{9}[/tex] of the area of rectangle A.
Step-by-step explanation: I'm very sorry about that, but I don't have any step-by-step explanation to this math question about finding the statement is very true about 2 similar rectangles are shown here below, so anyways, I hope that my full short given answer without my given step-by-step explanation to your own math question about finding the statement is very true about 2 similar rectangles are being shown here below, please mark me as Brainliest, take care, always be safe, and have a great rest of the day and good night! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
Thirteen of the Unites States do not touch the ocean. What percent of the United States do not touch the ocean? HELP!
You can text at a speed of 50 words per minute. At this rate, how many words can you text in four minutes?
Answer:
200 words
Step-by-step explanation:
50*4 = 200 words
Answer:
50 × 4 = 200
Step-by-step explanation:
so basically if you can text at a speed of 50 words a minute then all you have to do is multiple that by 4
Need this done in 5 minutes
Step-by-step explanation:
40, 58, 58, 72, 74, 74, 76, 81, 83, 84, 92
1 2 3 4 5 6 5 4 3 2 1
1) A. 74
2) B. 40
3) A. 92
4) A. 58
Brainlist pls!
Please solve this and give answer
Answer:
Step-by-step explanation:
What is the volume of this rectangular prism?
3
cn
om
5
cm
4
Answer:
1
Step-by-step explanation:
[tex]v = whl[/tex]
1 = 5/4 x 4/3 x 3/5
2y-4x=-18 slope intercept form
Answer:
y=−2x−9
Step-by-step explanation:
Can u guys help me please
1. What % of 240 is 60?
2. .90 is what percent of 120?
3. 24 is 96% of what number?
Find the mean, median, and mode(s) of the data:
34, 57, 58, 56, 21
Please hurry !!!!!!!
The volume of a cylinder is 471 cm? If the
height is 6 cm, calculate the radius.
Someone plz help
Answer:
Step-by-step explanation:
Formula for volume of a circle: V=πr²
If you multiply the circle by height, it becomes a cylinder.
Formula for volume of a cylinder: V=πr²h
Plug in the numbers and get r by itself:
471 = πr²(6)
Divide both sides by 6:
78.5 = πr²
Divide both sides by π:
25 = r²
Square root both sides:
[tex]\sqrt{25}[/tex] = [tex]\sqrt{r} \\[/tex]²
5 = r
Radius is 5 cm
If we work out the question ,
£118.80 divided by 22
on a calculator it comes out as 5.4
How could we write this answer as an amount of money?
Answer:
£5.40
Step-by-step explanation:
just add a zero for it to be pence
Melanie's fruit punch recipe calls for 6 cups of apple juice for every 3 cups of carrot juice.
How many cups of carrot juice are used for each cup of apple juice?
Answer:
1/2 cup of carrot juice for each cup of apple juice.
Step-by-step explanation:
The ratio of carrot juice to apple juice is 3:6
Also written as 1:2
1/2 cup of carrot juice per 1 cup of apple juice
Please help me pls plsss
Answer:
c is correct
Step-by-step explanation:
If you look at it, 2x is the slope. Always remember the formula y = mx + b
The mx is your slope. And the whole number is your b or y - intercept
Hope this Helps!! :)
Annie has a collection of large and small books. The mass of a large book is 3/4 kilogram. The mass of a small book is 1/4 kilogram. The total
mass of her collection of books is 11 kilograms.
How many large books does Annie have if she has 8 small books? Enter the answer in the box.
large books
Answer:
12 large books
Step-by-step explanation:
PLEASSSSSSSSEEEEEEEEEEEEEEEE JUST ANSWER MY QUESTION STOP SKIPPING ME SHOW WORK PDF BELOW FIND SURFACE AREA PLEASE 50 POINTS
Answer:
9) 21
10) 24
11) 14.6
Step-by-step explanation:
Literally just add up all the sides.
Write an equation of the line that passes through the given points.
(-6,8) and (1,0)
Answer:
y=-8/7x+8/7
Step-by-step explanation:
Write an equation that represents the line.
Use exact numbers.
Answer:
1x-2y
Step-by-step explanation:
You have to go down 2 on the y-axis and over to the right 1 on the x axis
calculate the perimeter of a rectangle with length 4+5y-3x and width 2x - 8y
Answer: p = - 6y - 2x + 8
Step-by-step explanation:
p = 2l + 2w
p = 2(4+5y-3x) + 2(2x - 8y)
p = 8 + 10y - 6x + 4x- 16y
p = - 6y - 2x + 8
Answer:
P=-2x-6y+8 i believe
Step-by-step explanation:
P= 2(4+5y-3x) + 2(2x-8y)
P= 8+10y-6x +4x-16y
=8+10y+−6x+4x+−16y
=(−6x+4x)+(10y+−16y)+(8)
=−2x−6y+8
The sample for a study exhibits undercoverage bias. Select the statement that best describes the bias in the study. O There are not enough subjects in the sample.
O Many of the subjects in the study did not answer every question on the survey.
O The subjects in the study are not representative of the population, because some members of the population were not able to participate in the study.
O The subjects in the study are not representative of the population, because some members of the population refused to take part in the study.
Answer:
The subjects in the study are not representative of the population, because some members of the population were not able to participate in the study.
Step-by-step explanation: i got it right on the test
A sample is said to exhibit undercoverage bias, if some of the portion or category of the population are not adequately represented or exempted from the selected sample. Hence, undercoverage bias exists because, The subjects in the study are not representative of the population, because some members of the population were not able to participate in the study.
Undercoverage bias produces non - representative samples as some category of the population may have been exempeted from the study. Hence, option C is correct.Undercoverage translates that the opinion of some members of the population were not even considered. Hence, the introduction of undercoverage bias.
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Ok can someone please help me? i really need help and no one will help me, its easy middle school math
Answer:
Step-by-step explanation:
7) A
8) D
9) B
10) A
How do u find the answer
Answer:
ok we dont know what for net time if you where going to post a picture with is press the paperclip button and choose what photo you want.
Step-by-step explanation:
Please mark as brainllest really need this one. have a nice week
[o]-[o]
\___/
What is the sum of the interior angles of this pentagon?
O 900°
O 360°
O 540
O 180°
Answer:
Step-by-step explanation:
360 + 3*180 = -360 + 540 = 180
For four sides -360 + 180*4 = 360
n-2)*180
For a fifteen sided share the sum of angles = (15-2)*180 = 13*180
Answer:
180
Step-by-step explanation:
find surface area of this cone
Answer:
SA = 200π cm²
Step-by-step explanation:
The surface area is calculated as
SA = area of base + area of curved surface
= πr² + πrs ( r is the radius and s the slant height )
Using Pythagoras' identity in the right triangle to find s
s² = 15² + 8² = 225 + 64 = 289 ( take square root of both sides )
s = [tex]\sqrt{289}[/tex] = 17
SA = π × 8² + π × 8 × 17
= 64π + 136π
= 200π cm²