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wariber [46]
3 years ago
15

A confidence interval for the population mean length of hit songs was found to be 4.1 to 5.3 minutes. Find the point estimate (t

hat is, find the midpoint of this confidence interval.)
Mathematics
1 answer:
Zanzabum3 years ago
6 0

Answer:

4.7

Step-by-step explanation:

Given :

initial mean length =4.1  minutes.

Final mean length =5.3 minutes

The mid point of the given interval can be determined by the

Midpoint \ = \frac{Initial\ Mean\ length\ +Final\ Mean\ length }{2}  \\Midpoint \ = \frac{4.1\ +\ 5.3\  }{2}  \\Midpoint \ = \frac{9.4 }{2}  \\Midpoint \ =4.7\\

Therefore 4.7 is the midpoint

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Katyanochek1 [597]

Answer:

Option D

Step-by-step explanation:

Out of all given options, Option D (the parallelogram) will tessellate the easiest.

Option B's shape (the Trapezoid) is also possible. However, it would take a little more work for it to tessellate. The trapezoid provided would not tessellate alone.

Option A and Option C's shape wouldn't tessellate because it would leave a gap.  To add, Option C's shape is nearly impossible to tessellate.

4 0
3 years ago
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Step-by-step explanation:

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2 years ago
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ipn [44]

Answer:

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Step-by-step explanation:

It's one of each or not both tho:)

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3 years ago
Read 2 more answers
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Maksim231197 [3]

I'm doing 3

     For 3, using a table is very similar to a double number because the numbers are matching up in both ways.

         On the bottom of a double number line we have like, for example,-- the bottom of the double number line would have batches. And its 1, 2, 3 ,4 , etc.

         And on a table, it would be the same, the numbers on both diagrams have the same methods, have same way of lining things up but they're just drawn differently.

                Hope this helped!

 

3 0
3 years ago
Do i need to reverse the inequality symbol when i add the same positive number to or subtract the same positive number from both
stira [4]
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