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3 years ago

Which statement is sometimes true will give brainlist if righ and 10 extra points

Mathematics

2 answers:

arlik [135]3 years ago

4 0

A rectangle is a square.

LiRa [457]3 years ago

4 0

A rectangle is a parallelogram( I should know I got an A in geometry )

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At Appalachian State University it is known that 52% of undergraduates are female. If a sample of 150 undergraduate students was

In-s [12.5K]

Answer:

a. The sampling distribution will be approximately normal.

d. The mean of the sampling distribution will be close to 52%

g. The standard deviation of the sampling distribution will be 0.0408

Step-by-step explanation:

For this problem the sample size is large enough (n>30), and then the sampling distribution $\hat p$ would be approximately normal. The mean of the sampling distributions is given by $p=0.52$

The expected value for the sampling distribution would be 0.52 since $E(\hat p) = p$

And for the standard deviation we know that is given by:

$Sd= \sqrt{\frac{p (1-p)}{n}}=\sqrt{\frac{0.52(1-0.52)}{150}}=0.0408$

So the correct answers on this case are:

a. The sampling distribution will be approximately normal.

d. The mean of the sampling distribution will be close to 52%

g. The standard deviation of the sampling distribution will be 0.0408

3 0

3 years ago

Please help I’ll give brainliest

ziro4ka [17]

Answer:

25 chords

Step-by-step explanation:

First, set up the ratio 40:8.

Now, make a proportion.

$\frac{40}{8}$ = $\frac{x}{5}$

This proportion will give you x=25, so your answer is 25.

Hope this helps! Have a great day! :)

7 0

2 years ago

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Heeeelllpppp

Feliz [49]

Answer:

11.85 ounces to 12.35 ounces

Step-by-step explanation:

A P E X

7 0

2 years ago

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Company A manufactures and sells gidgets. The owners have determined that the company has the monthly revenue and cost functions

jasenka [17]

Answer:

Option A. 356 gidgets

Step-by-step explanation:

we have

R(x) ----> the monthly revenue function

C(x) ---> the monthly cost function

x ----> the number of gidgets sold

$R(x)=16x$

$C(x)=12x+1,424$

we know that

Break-even means that the revenue equals cost

$16x=12x+1,424$

solve for x

$16x-12x=1,424$

$4x=1,424$

$x=356\ gidgets$

3 0

3 years ago

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Point (2,3) is on a circle with the center (3,5). What is the radius of the circle?

ruslelena [56]

Can you add the picture to the question?

6 0

3 years ago

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