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Nadusha1986 [10]

2 years ago

9

A store sells boxes of tissue that have 6 tissues in each box. The boxes are arranged 3 across and 4 deep on each shelf. How man

y tissues are on each shelf?

1 answer:

natka813 [3]2 years ago

4 0

Number of boxes = 3 across x 4 deep = 12 total boxes.

Each box has 6 tissues.

Total tissues = 6 per box x 12 boxes = 72 tissues.

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A poll conducted in 2013 found that 55% of U.S. adult Twitter users get at least some news on Twitter (Pew, 2013). The standard

alina1380 [7]

Answer:

The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is between 49.34% and 60.66%, which means that we are 99% sure that the true percentage of US adult Twitter users who get some news is in this interval.

Step-by-step explanation:

Confidence interval:

A confidence interval has the following format:

$M \pm zs$

In which M is the sample mean, z is related to the confidence level and s is the standard error.

55% of U.S. adult Twitter users get at least some news on Twitter (Pew, 2013). The standard error for this estimate was 2.2%.

This means that $M = 55, s = 2.2$

99% confidence level

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

Lower bound of the interval:

$M - zs = 55 - 2.575*2.2 = 49.34$

Upper bound:

$M + zs = 55 + 2.575*2.2 = 60.66$

The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is between 49.34% and 60.66%, which means that we are 99% sure that the true percentage of US adult Twitter users who get some news is in this interval.

6 0

2 years ago

The rope required to measure the diametwr of acicular pond is 90 m shorter than measurin its circumference. find the diameter of

Taya2010 [7]

<h3>Answer:</h3><h3>↪️Diameter is 42.056 meter. </h3>

<h3>❀ Don't forget to thanks</h3><h3>❀ Mark as brainlist.</h3>

6 0

2 years ago

Read 2 more answers

What is the probability of choosing an ace from a deck of cards? Type your answer as a fraction.

Igoryamba

Answer:

Step-by-step explanation:

there are 52 cards in a deck, there are 4 aces. This would create a fraction of 4/52. (using the probaility set up of what I want over the total of everything). I hope this helps!

8 0

2 years ago

Write an inequality to represent the phrase: The product of a number and 5 is at least 45

lutik1710 [3]

See the photo attached

7 0

3 years ago

Xy+(z-x) x=3 y=2 z=4

mixer [17]

Answer:

7

Step-by-step explanation:

xy + (z-x)

x = 3

y = 2

z = 4

3×2 + (4-3)

6+1

= 7

4 0

2 years ago