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Kaylis [27]
3 years ago
13

Can someone fill out please i am horribly at this thanks in adavance

Mathematics
1 answer:
liberstina [14]3 years ago
8 0
2,384 is the answer to the division problem
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Out of a sample 650 high school students, 321 take the bus to school every day. construct a 99% confidence interval for the popu
gtnhenbr [62]

A 99% confidence interval for the population mean of high school students that take the bus to school every day is b) ci=(44.34%, 54.43%)

We need to find the 99% confidence interval for the population mean of high school students that take the bus to school everyday

A confidence interval is a range of estimates for an unknown parameter. The confidence interval is calculated at the specified confidence level; the most common is the 95% confidence level, but sometimes other levels are used, such as 90% or 99%.

The confidence interval of proportions is given by:

π ± z √(π (1-π) /n)

π is the sample proportion.

z is the critical value.

n is the sample size.

For 99% confidence interval the value of z is 2.58

π = 321/650

The confidence interval is given by

=321/650 ± 2.58 √( (321/650) × [ 1 - (321/650) ] ÷ 650)

= (0.493846 ± 0.050594)

=(0.4434 , 0.5443)

=(44.34 % , 54.43 %)

Hence a 99% confidence interval for the population mean of high school students that take the bus to school every day is ci=(44.34%, 54.43%)

<u>Learn more about confidence interval:</u>

brainly.com/question/28052710

# SPJ4

8 0
2 years ago
Write “ The difference between n and 16 is 5” is in algebraic equation. Then find the solution.
IceJOKER [234]
The different between n and 15 is 5 in an algebraic expression would be n-16=5
the solution would be n=21
5 0
2 years ago
—4 and 4 are ____________ because they have the same absolute value but different signs.
sergij07 [2.7K]
Opposites. Their sum is zero so they are called opposites.
3 0
3 years ago
Find the surface area of the figure shown.
balandron [24]

Answer:

The correct answer is option d.  576 ft^2

Step-by-step explanation:

From the figure we can see that a prism

<u>To find the surface area</u>

Surface area = Base area + area of 2 triangles + Two side area

Base area = length * breadth = 15 * 12 = 180 ft^2

Area of triangle = bh/2 = (12 * 8)/2 = 48 ft^2

Area of two triangle = 48 * 2 = 96 ft^2

Area of one side = 15 * 10 = 150 ft^2

Area of two side = 2 * 150 = 300 ft^2

Surface area = 180 + 96 + 300 = 576 ft^2

The correct answer is option d.  576 ft^2

3 0
3 years ago
The function f(x) = x2 is graphed on a coordinate grid. Lauren wants to graph g(x) = (x + 2)2 + 3 on the same grid. Which of the
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Answer:

f(x2)

Step-by-step explanation:

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