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To find the average you have to add up all the numbers that you want to average.

Then you divide the sum by the number of how many numbers you added. Then the number you have left is your average or mean.(See example for help.)

EX. 2+7+4+8+5=26

26*5=5.2

Average= 5.2

(* means divide)

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13y ago
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14y ago
its very simple...do you want further details plz click here...

http://www.business-analysis-made-easy.com/

What Is Standard Deviation? google_protectAndRun("render_ads.js::google_render_ad", google_handleError, google_render_ad);

To answer the question of what is standard deviation you must refer to the question raised in mean average. The mean or average have little value without some measure of the variability of the data. Standard deviation to the rescue!

The Equation

The standard deviation equation is:


It must be noted that this formula is for the sample and not for the population. If you don't know what this means, don't worry about it. For simple applications it makes little difference.

Now that you have seen the formula, let's describe what is happening in simpler terms. The formula is simply finding the average distance each data point is from the dataset mean. The squared numbers is a mathematical way of making all of the distances positive. So here is our measure of a datset: First we find the average of the data points, then we find the average of the distance each data point is from the mean or average of the data. This gives us a good beginning in describing the data within a datset.

Summary

The question of explaining standard deviation has been addressed herein. It is the average of the distance from the mean of all the data points in the dataset. To see an example of how this parameter is calculated go to Standard Deviation Calculation.

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15y ago

Add up all the prices or rates and divide it by the number of rates that you added together. The resulting answer is the average rate. Add up all the prices or rates and divide it by the number of rates that you added together. The resulting answer is the average rate.

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14y ago

Add up all of the numbers you have, and divide by the number of numbers you added. This is also called the mean.

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12y ago

add all of ur test scores (x) and then times the amount of tests you had (b) by 100 (y)

y-x= overall score.

Now we need to find the average (a)

x÷b=a

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14y ago

How many miles traveled divided by the time it took to travel.

Like if

you travel 60 miles in 60 minutes

Your average speed would be 1 mph

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Q: How do you work out the average speed of something?
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Related questions

What is the difference between constant speed and average speed?

Average speed is a representation of all your speeds between two points, constant speed is just unchanging speed.


What does the driver check while looking a the speedometer?

The driver checks the average speed of the car, which is the distance per hour is going. Average speed is the constant speed something is traveling at.


How do you work out driving time?

Divide the distance by the average speed.


How do you work out the wavelength of something?

frequency divided by speed i think


How is a distance time graph be used?

To find the average speed or rate of something.(:


How acceleration works?

acceleration work by speed when something is going fast and when it and go over or faster with something.


What is the difference between average speed and istantaneous speed?

Instantaneous speed is your speed at a given moment in time, whereas the average speed is the rate at which something has travelled from one point to another.In practice, the average speed is calculated using the total distance travelled and dividing it by the total time spent travelling:vaverage=Δd/ΔtWhereas the instantaneous speed is the time derivative of the distance travelled:vinstantaneous=dx/dt


Average speed is the rate at which an object is moving at a given instant?

No. Average speed is the rate an object is moving measured over more than an instant, such as one second, one minute, or something like that. Instantaneous speed, however, is the limit of the average speed as the interval of time approaches zero, i.e. at a given instant.


How can you calculate average speed from a distance -time graph?

Speed is distance divided by time so pick the section you want to work out the average for, work out how much distance has been traveled in that section and divide it by how much time has passed for that section.


When are speed and average speed the same?

Average speed is an average value of speed over a given time. If your speed is constant (not changing), then your average speed will equal your speed at any given moment in time.


Are speed and average speed different?

Yes, because average speed is all of the different speeds added together and then divided by how many speeds there are (ex: 70 mph + 60 mph = 130 mph. 130 mph divided by 2 = 65 mph (which is the average speed)) and speed is just how fast an object is moving (ex: 80 mph is the speed of something going 80 mph).


How long does it take to travel 300 miles by car?

It depends on your average speed. If the roads permit an average speed of 60mph, it would take you 5 hours. To work it out (using T=D/S): Time (hours) = 300 miles divided by average speed (mph)