Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #26 20090909 04:34:48
Re: How do i work out an average?
it's really easy,just add them together and divide by how many numbers there are.the answer is 3.33reacuring #27 20090909 05:02:12
Re: How do i work out an average?Hi shirin; Last edited by bobbym (20090909 05:04:23) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #28 20090912 18:30:13
Re: How do i work out an average?say i had 6 numbers, 5 14 22 28 34 46 lottery numbers if you will but lets say i had around 20 random combinations.. so 6 numbers in 20 different groups, how would i work out the adverage 6 numbers, i dont quite know the sum to work out the adverage, if i add all the numbers together an divide by how many individual numbers there are ? or how many different groups of 6 ? i.e divide by 20 ? an wouldnt this just give me 1 number? not the adverage 6 numbers? ive been racking my brain ALL NIGHT with this any help would be grreeattt!!! #29 20090912 21:58:50
Re: How do i work out an average?You'd take the twenty "first numbers", add them up and divide by 20. Why did the vector cross the road? It wanted to be normal. #30 20091030 00:33:35
Re: How do i work out an average?william has two 10sided spinners. the spinners are equally likely to land on eaach of thier sides. spinner A has 5 red sides, 3 blue sides and 2 green sides. Spinner B has 2 red sides, 7 blue sides and 1 green side. William spins both spiinners once. Work out the probability that spinner A & B do not land on the same colour. :dunno somebody please help me to answer this :S :i am very confused and not.v good at maths. please helpp:down #31 20091030 02:20:36
Re: How do i work out an average?Hi notgudatmathsgrl; So 67 / 100 is the chance that when you spin them both once they will not land on the same color. Last edited by bobbym (20091031 05:59:47) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #32 20091125 05:00:37
Re: How do i work out an average?
I have to work this out can anyone help me
(?+?=?) Square number ?? triangular number ?? cube number ??? as you can see there are 9 spaces I have to fit the numbers 1 to 9 in here I know how to work out square, triangular and cubed numbers I just dont know what numbers fit in where please help!!!! #33 20091125 12:27:48
Re: How do i work out an average?Hi Rebecca22; Last edited by bobbym (20091125 12:28:20) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #34 20100104 04:05:05
Re: How do i work out an average?is there a difference between mean and average? #35 20100104 23:26:07
Re: How do i work out an average?Hi nogoodatmaths; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #36 20100122 04:47:48
Re: How do i work out an average?What i don't know is, I want the average of 23.5, 23.0 and 23.3 #37 20100122 04:52:17
Re: How do i work out an average?just had a thought...............sshould i use the mode instead of the mean??????? #38 20100122 04:54:49
Re: How do i work out an average?just realised i meant median. #39 20100122 05:10:33
Re: How do i work out an average?Sylver............i think ur calculators wrong. or is that just me...........................? #40 20100122 08:18:30
Re: How do i work out an average?Hi Sylver;
No, that is not the median of that set of data the median is 23.3
Also you are not calculating the mean or average right. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #41 20100125 01:15:34
Re: How do i work out an average?er thanks but that was seriously confusing. #42 20100125 10:51:15
Re: How do i work out an average?Hi Sylver;
I remember discussing this point with coworkers for months as they refused to go over to computers while I got better practical answers than they did using them. I finally convinced some of them that Sir Michael's statements were idiotic. Now I am not so sure. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #43 20100221 16:55:59
Re: How do i work out an average?
Whoops, forgot to type in the problem... #44 20100221 17:35:13
Re: How do i work out an average?Hi Janice; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #45 20100222 21:08:49
Re: How do i work out an average?Hey, thank you so much for the help. But I'm a bit confused. What does the asterisks mean? Can you please try and explain in the 'primary school' version, as in easier. With the multiplication and division symbols? Thanks...^^ #46 20100222 21:14:29
Re: How do i work out an average?Hi Janice; Is that easier for you to understand? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #47 20100223 17:43:59
Re: How do i work out an average?Yes, thank you so much!! You guys are fast at replying messages on forums... #48 20100224 02:01:44
Re: How do i work out an average?Hi Janice; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #49 20100301 19:55:58
Re: How do i work out an average?
#50 20100302 03:27:01
Re: How do i work out an average?Hi andipex, igloo myrtilles fourmis 