Data types vs Mathematical operations

Hi,

I have prepared a slide to show the various data types and the allowed mathematical operations on each of them for a training session. can you pls. review the slide and tell me if the info. is correct?

thanks

Interval data cannot be multiplied or divided. Only ratio data can do that.

By discrete, did you mean integer data? Discrete tends to be used in many different ways, so I recommend that you define your usage of discrete.

I would also add that you can determine differences between variables for all of the data types listed.
The techniques are different of course. For example, you can’t use t-tests or ANOVA if you can’t multiply/divide…

Miner said:

Interval data cannot be multiplied or divided. Only ratio data can do that.

By discrete, did you mean integer data? Discrete tends to be used in many different ways, so I recommend that you define your usage of discrete.

Click to expand...

Hi Miner,

Thanks, and yes by Discrete I mean 'count data' only. I have also attached three more slides which i plan to show before i show 'mathematical operations slides'. Theses slides will describes the various data type with examples.

Bev D said:

I would also add that you can determine differences between variables for all of the data types listed.
The techniques are different of course. For example, you can’t use t-tests or ANOVA if you can’t multiply/divide…

Click to expand...

Hi Bev,

thanks for your reply but i am not sure if i understood correctly because i thought we could not determine the differences if the data type is Nominal, ordinal or binary. Can you enlighten me on this?

Thanks