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2 years ago

90 to 48 rounded to the nearest percent

Mathematics

2 answers:

algol132 years ago

8 0

Answer:Basically, we are trying to find the change from 90 to 48 in terms of percent. We do this in three steps:

1) Find the difference between 90 and 48 as a number.

2) Divide the result from Step 1 by the starting number 90.

3) Multiply the result from Step 2 by 100 to get it in terms of percent.

The three steps above can be made into a formula. Thus, to find the percent change from 90 to 48, we use this formula:

((Y-X)/X)*100 = Percent Change

X is the starting number 90, and Y is the ending number 48 that it changed to. When we enter these numbers into the formula, we get:

((48-90)/90)*100 = -46.67%

Thus, the answer to the question "What is the Percent Change from 90 to 48?" is:

-46.67%

Note: All percent answers are rounded to the nearest two decimals if necessary.

Step-by-step explanation:

BaLLatris [955]2 years ago

4 0

Answer:

-46.67%

Step-by-step explanation:

1) Find the difference between 90 and 48 as a number.

2) Divide the result from Step 1 by the starting number 90.

3) Multiply the result from Step 2 by 100 to get it in terms of percent.

The three steps above can be made into a formula. Thus, to find the percent change from 90 to 48, we use this formula:

((Y-X)/X)*100 = Percent Change

X is the starting number 90, and Y is the ending number 48 that it changed to. When we enter these numbers into the formula, we get:

((48-90)/90)*100 = -46.67%

Thus, the answer to the question "What is the Percent Change from 90 to 48?" is:

-46.67%

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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.

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$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5643 + 1.96\sqrt{\frac{0.5643*0.4357}{1644}} = 0.588$

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Yes, because the confidence interval is entirely above 0.5.

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