Question

What does range mean in math

Answer 1

range is as far as the "y" can see

Answer 2

Well it depends. In statistics it means the greatest value minus the smallest value..

Answer 3

In coordinate geometry it is the set of values for a function (or the y values).

Answer 4

if f: X to Y, then X is the domain of the function, and Y is the range that is produced

Answer 5

lol @amistre64 nice one :D

The subset of the co-domain;

If I have an input machine, then the set of y-values (output values I get) for each set of x-values that I input will be our range.

Answer 6

THANK YOU

Answer 7

@amistre64 Are you referring to the notation (example):\[\bf f: \mathbb{R} \rightarrow \mathbb{R}\]

Answer 8

@genius12 @amistre64 based on the earlier questions that she asked, I believe she was asking about range in the statistical sense.

Answer 9

i was refering to mapping notation yes :)

Answer 10

No I am saying that the OP was referring tin range in the statistcal sense.

Answer 11

even in a statistical sense, range is still a spread

Answer 12

@Paynesdad I didn't know that lol..

If that is the case then the range is the difference between the maximum and minimum values of the data set. The range is also a measure of dispersion (along with IQR, variance, and standard deviation)

@michellemater

Answer 13

@amistre64 In that case, the example I posted would suggest that the domain is the real numbers and the co-domain is also real numbers. Would you agree?

Answer 14

btw, i meant to say measure of spread not dispersion lol @Paynesdad @michellemater

Answer 15

don't know why I wrote disperson =.=

Answer 16

I know that the range is the subset of the codomain but is that enough to imply the range to be the SAME as the codomain for every function? @amistre64