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Maths Question

Banned
Fairly simple i have forgot how to do it. I can do it with grouped data but forgot how to do this.

Q:

There tempreture is recorded at midday on 5 days.

Day Tempreture

mon -5
tue -3
wed -1
thu +3
fri 0

Calculate the mean tempreture.

Thanks to anyone who can help

Shergold.

mean temperate is -1.2

add the data and divide by the number recorded temperatures:
mean (-5-3-1+3) /5 = -6/

????????

Example:
What is the Mean of these numbers?
6, 11, 7

Add the numbers: 6 + 11 + 7 = 24

Divide by how many numbers (ie we added 3 numbers): 24 ÷ 3 = 8

The Mean is 8

Banned

rchan;8399188

mean temperate is -1.2

:thumbsup:

Mean is the average, so add all together (-6) and divide by the number of days (5) which gives you -1.2

Original Poster Banned

rchan;8399188

mean temperate is -1.2

Cheers.

Original Poster Banned

Rep added to all

whatsThePoint;8399210

:thumbsup:

As opposed to what other mean?

dungavel;8399194

add the data and divide by the number recorded temperatures: mean … add the data and divide by the number recorded temperatures: mean (-5-3-1+3) /5 = -6/

= -6/5

civms47;8399235

As opposed to what other mean?

Mode, range, median? thats some :-D

rchan;8399241

= -6/5

I edited it five times and still got it wrong. I had it all laid out nice and it didn't format correctly.

dungavel;8399322

I edited it five times and still got it wrong. I had it all laid out nice … I edited it five times and still got it wrong. I had it all laid out nice and it didn't format correctly.

doh, nevermind.

think OP was only interested in the answer anyway.

Banned

-6/5=-1.2

rchan;8399254

Mode, range, median? thats some :-D

Are the mode, range and median not the, well, how do I put this? The mode, range and median? Not the mean? :thinking:

The mean is the most common measure of average.
To calculate the mean add the numbers together and divide the total by the amount of numbers:
Mean = sum of numbers ÷ amount of numbers

If you place a set of numbers in order, the median number is the middle one.
If there are two middle numbers, the median is the mean of those two numbers.

The mode is the value that occurs most often.
The mode is the only average that can have more than one value.

The range is the difference between the highest and lowest values in a set of numbers.
To find it, subtract the lowest number in the distribution from the highest.

Easiest way if you are ever stuck is use Excel.

Just type each number into a column, then highlight them all and down the bottom right it shows you the average, the total and any other crap you want to know.