Which one of the following variable is not categorical.

Of four agents alpha, beta, gamma anddelta, three have to be sent together on amission. if alpha and beta cannot gotogether, beta and gamma cannot go togetherand gamma and delta cannot go together, then which of the following holds? 1. any three agents can be sent.2. alpha, delta and any one out of beta andv gamma can be sent.3. beta, gamma and any one out of alphaand delta can be sent.4. the mission is impossible.

If you measure your shoe size would it be considered qualitative data?

Ben is interested in using a source that provides original research, current and developing trends and experts within specific fields. which source should he use?