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3 years ago

6

What does 20% off the regular price mean

2 answers:

satela [25.4K]3 years ago

5 0

20% off the regular price means that 20% is being multiplied from the original price and then subtracted from. For example, if you were to be buying a new fur coat for $50 and the store is having 20% off on it, you would multiply 20% or 0.2 to 50 (the original price of the coat) which would be 10. Then, you would subtract 10 from 50 making your new price $40. This would be an example of 20% off of a regular price.

rewona [7]3 years ago

4 0

Take the regular price, multiply it by .2, subtract that off of the regular price. What it means is 20% of the regular price is taken away from the regular price.

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AlekseyPX

Answer:

His 95% confidence interval is (0.065, 0.155).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 186, \pi = 0.11$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.11 - 1.96\sqrt{\frac{0.11*0.89}{186}} = 0.065$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.11 + 1.96\sqrt{\frac{0.11*0.89}{186}} = 0.155$

His 95% confidence interval is (0.065, 0.155).

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2 years ago

Replace the ? with one of the following symbols (<, >, =, or ≠) for 4 + 3 + 7 ? 7 + 0 +7 A. ≠ B. = C. < D. >

yan [13]

[ Answer ]

$\boxed{=}$

[ Explanation ]

4 + 3 + 7 ___ 7 + 0 + 7

Solve Each Side:

4 + 3 + 7 = 14

7 + 0 + 7 = 14

14 __ 14

14 is equal to 14, therefore the __ (Or ?) is replaced with an = sign.

$\boxed{[ \ Eclipsed \ ]}$

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Step-by-step explanation:

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2 years ago

What is 392,153 to the nearest hundred

Airida [17]

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2 years ago

Read 2 more answers