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2 years ago

How to do percentages?

2 answers:

8 0

To calculate the percentage increase, work out the difference (increase) between the two numbers you are comparing. Then divide the increase by the original number and multiply the answer by 100.

Andrew [12]2 years ago

4 0

To make a percentage out of a decimal, you must move it 2 places to the right of a number.
For example, 0.10 = 10%, 0.25 = 25%

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balandron [24]

Answer:

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GenaCL600 [577]

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2 years ago

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A tractor is moving at a speed of 15 miles per hour what’s the tractors speed in feet per minute

kicyunya [14]

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2 years ago

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A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0 and 55.

ra1l [238]

Answer:

0.025

Step-by-step explanation:

Hello!

Given that the classes are uniformly distributed between 45.0 and 55.0 minutes, the propability distribution will be:

$P(x)=\frac{1}{55-45} = \frac{1}{10}$

Now, we are looking for a probability P(51.5<x<51.75) which can be computed as:

$P(51.5$

Therefore:

P(51.5<x<51.75) = 0.025

P(51.5<x<51.75) = 2.5%

I strongly believe that the answer for both questions have the same answer, I believe this because there is no additional info for a given class or selecting a class. I think both probabilities are the same.

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3 years ago